Question I've literally tried everything to fix my unstable network connection ?

[monshmosh]

Over the last week, my network latency has become unstable to the point I can't do my job properly (working from home) or reasonably play anything online. Download/upload speeds are perfectly fine. No packet loss. But for some reason my ping is jumping from 50ms to 200ms, sometimes topping out at 1000ms+. This has been the same with ethernet connection and using WiFi, same results from connecting my mobile data which lead me to believe it may be a hardware problem.

Need advice as if this is an ISP issue, there's not a lot I can do as this is the only ISP I can really have in my area. I'm not super knowledgeable on alternative routers and bufferbloat. ExitLag diagnostic scan gave my Bufferbloat a D rating.

System hardware specs:
Motherboard: Gigabyte Aorous B550 Elite AX V2 rev 1.5
CPU: AMD Ryzen 7 3800X
RAM: 32.0GB Dual-Channel DDR4 @ 1796MHz
GPU: TUF Gaming 4089MB NVIDIA GeForce RTX 4070 (ASUStek Computer Inc)
Storage: 2 Crucial m.2 SSDs; 1tb drive and a 2tb drive

Troubleshooting I have attempted:

• Flushing DNS
• Reinstalling network drivers and devices
• Disabling IPv6
• Factory resetting router
• Alternative ethernet cable
• Upgraded motherboard (now using Gigabyte Aorous B550 Elite AX V2 rev 1.5, can't remember what the old one was but switching them changed nothing)
• Upgraded from Windows 10 Home to Windows 11 Home
• ExitLag helps from time to time but not consistently enough to solve the issues. On good evenings, I can still feel the connection drops which make competitive games a really frustrating experience. Also cannot use it for work.

Ping results:

Ping statistics for 8.8.8.8:
Packets: Sent = 25, Received = 25, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 8ms, Maximum = 779ms, Average = 197ms

Ping statistics for 192.168.1.1:
Packets: Sent = 19, Received = 19, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 0ms, Maximum = 0ms, Average = 0ms


Tracing route to www.google.com [216.239.38.120]
over a maximum of 30 hops:

1 <1 ms <1 ms <1 ms home [192.168.1.1]
2 1 ms <1 ms <1 ms MyPuter.home [192.168.1.75]
3 * * * Request timed out.
4 10 ms 7 ms 9 ms MyPuter.home
5 * * * Request timed out.
6 * * * Request timed out.
7 * * * Request timed out.
8 * * * Request timed out.
9 * * * Request timed out.
10 * * * Request timed out.
11 * * * Request timed out.
12 * * * Request timed out.
13 12 ms 12 ms 8 ms any-in-2678.1e100.net [216.239.38.120]

 

[kanewolf]

Over the last week, my network latency has become unstable to the point I can't do my job properly (working from home) or reasonably play anything online. Download/upload speeds are perfectly fine. No packet loss. But for some reason my ping is jumping from 50ms to 200ms, sometimes topping out at 1000ms+. This has been the same with ethernet connection and using WiFi, same results from connecting my mobile data which lead me to believe it may be a hardware problem.

Need advice as if this is an ISP issue, there's not a lot I can do as this is the only ISP I can really have in my area. I'm not super knowledgeable on alternative routers and bufferbloat. ExitLag diagnostic scan gave my Bufferbloat a D rating.

System hardware specs:
Motherboard: Gigabyte Aorous B550 Elite AX V2 rev 1.5
CPU: AMD Ryzen 7 3800X
Memory: 32.0GB Dual-Channel DDR4 @ 1796MHz
GPU: TUF Gaming 4089MB NVIDIA GeForce RTX 4070 (ASUStek Computer Inc)
Storage: 2 Crucial m.2 SSDs; 1tb drive and a 2tb drive

Troubleshooting I have attempted:
- Flushing DNS
- Reinstalling network drivers and devices
- Disabling IPv6
- Factory resetting router
- Alternative ethernet cable
- Upgraded motherboard (now using Gigabyte Aorous B550 Elite AX V2 rev 1.5, can't remember what the old one was but switching them changed nothing)
- Upgraded from Windows 10 Home to Windows 11 Home
- ExitLag helps from time to time but not consistently enough to solve the issues. On good evenings, I can still feel the connection drops which make competitive games a really frustrating experience. Also cannot use it for work.

Ping results:

Ping statistics for 8.8.8.8:
Packets: Sent = 25, Received = 25, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 8ms, Maximum = 779ms, Average = 197ms

Ping statistics for 192.168.1.1:
Packets: Sent = 19, Received = 19, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 0ms, Maximum = 0ms, Average = 0ms


Tracing route to www.google.com [216.239.38.120]
over a maximum of 30 hops:

1 <1 ms <1 ms <1 ms home [192.168.1.1]
2 1 ms <1 ms <1 ms MyPuter.home [192.168.1.75]
3 * * * Request timed out.
4 10 ms 7 ms 9 ms MyPuter.home
5 * * * Request timed out.
6 * * * Request timed out.
7 * * * Request timed out.
8 * * * Request timed out.
9 * * * Request timed out.
10 * * * Request timed out.
11 * * * Request timed out.
12 * * * Request timed out.
13 12 ms 12 ms 8 ms any-in-2678.1e100.net [216.239.38.120]

Your ping to your router is good. The traceroute to google is strange. It goes to your router (1.1) then back to your PC (1.75) Then to your PC again then out.
This sounds like you have some kind of malware or other software issue.
You say you "upgraded" your motherboard and "upgraded" Windows. Was that Windows a clean install ? Not doing a clean install with a new motherboard can cause all sorts of strange issues.
I would start with booting a portable Linux. See if the ping to 8.8.8.8 and the traceroute seems more reasonable.

 

[monshmosh]

Your ping to your router is good. The traceroute to google is strange. It goes to your router (1.1) then back to your PC (1.75) Then to your PC again then out.
This sounds like you have some kind of malware or other software issue.
You say you "upgraded" your motherboard and "upgraded" Windows. Was that Windows a clean install ? Not doing a clean install with a new motherboard can cause all sorts of strange issues.
I would start with booting a portable Linux. See if the ping to 8.8.8.8 and the traceroute seems more reasonable.

That was my first thought too. When I added the 2tb drive I did a clean Windows 11 install through a USB stick. Internet seemed alright until I updated all the drivers but I didn’t fully test it for long enough so I can’t say for sure, it’s just really strange.

The fact it’s so affecting other devices like my work PC (LAN) and my mobile phone (WiFi) also doesn’t make sense if it was malware.

 

[kanewolf]

That was my first thought too. When I added the 2tb drive I did a clean Windows 11 install through a USB stick. Internet seemed alright until I updated all the drivers but I didn’t fully test it for long enough so I can’t say for sure, it’s just really strange.

The fact it’s so affecting other devices like my work PC (LAN) and my mobile phone (WiFi) also doesn’t make sense if it was malware.

Yes, it could. If your PC is doing some kind of ARP poisoning or other malware type actions that can cause the routing to be messed up -- https://www.radware.com/security/ddos-knowledge-center/ddospedia/arp-poisoning/

 

[monshmosh]

Yes, it could. If your PC is doing some kind of ARP poisoning or other malware type actions that can cause the routing to be messed up -- https://www.radware.com/security/ddos-knowledge-center/ddospedia/arp-poisoning/

Never heard of this before, what can I do about this? After looking it up I found that you can detect if this is the case with a CMD command, this was the result, unsure if anything here is suspicious or out of the ordinary:
Interface: 192.168.1.75 --- 0x10
Internet Address Physical Address Type
192.168.1.1 78-c5-7d-35-b9-30 dynamic
192.168.1.255 ff-ff-ff-ff-ff-ff static
224.0.0.5 01-00-5e-00-00-05 static
224.0.0.22 01-00-5e-00-00-16 static
224.0.0.251 01-00-5e-00-00-fb static
239.255.255.250 01-00-5e-7f-ff-fa static

 

[evermorex76]

Hop 4 on your traceroute doesn't give an IP address? That's weird in and of itself.

The first hop is your router, the second hop is your computer, then an unknown address, then your computer again (based on the name only), then unknown. Unknown/unresponsive hops are pretty normal after exiting your network, as ping and traceroute are often dropped by intervening network devices.

Do you get the same weird traceroute when you test from the Wi-Fi device? Do you get the same result during both good times and bad?

"same results from connecting my mobile data" - What does this mean? Not using your ISP but using your cell phone provider network you have the same issue? What IS your ISP? Are you just using the gateway they provided?

Windows also has a "reset network" option that might do more than you got from changing drivers, but it doesn't sound like that's going to be a fix. You need to figure out why traffic is passing to your router then back to your PC then to another device then to your PC again.

It's unlikely, but I'm wondering if there's actually an IP conflict with your ISP's network. If they have a parts of their network using 192.168.1.x and have improperly configured their network to actually route that subnet to the rest of the world, you could be getting a reply on hops 2 and 4 from THEIR device that makes it look like YOUR device. That might not have anything to do with your latency issue, but it COULD if it meant your end is not receiving reply packets and they have to be re-sent due to them being intermittently sent to the wrong destination.

If you change the subnet of your network in the router to something different like 10.10.10.x, maybe it would resolve the issue. Assuming your ISP didn't also improperly use and route that subnet.

While you're logged into the router, check your WAN address. Just to see if you've got a real public external IP. You can also use whatismyip.org to see what your IP is shown as, and then do a traceroute to that address. If it's more than one hop then you're behind carrier-grade NAT, sharing a public IP with many other people, which can cause random issues.

 

[Ralston18]

Run "ipconfig /all" via the Command Prompt.

Post the full results.

You should be able to use copy and paste with no need to retype everything.

= = = =

Also try Powershell cmdlets as another means to discover more.

Test-Connection

Test-NetConnection

https://learn.microsoft.com/en-us/p.../test-netconnection?view=windowsserver2025-ps

You can easily find other similar links with no need to download other utilities and apps.

 

[monshmosh]

Run "ipconfig /all" via the Command Prompt.

Post the full results.

You should be able to use copy and paste with no need to retype everything.

= = = =

Also try Powershell cmdlets as another means to discover more.

Test-Connection

Test-NetConnection

https://learn.microsoft.com/en-us/p.../test-netconnection?view=windowsserver2025-ps

You can easily find other similar links with no need to download other utilities and apps.

Here is the results for ipconfig /all:

Windows IP Configuration

Host Name . . . . . . . . . . . . : MyPuter
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Hybrid
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No
DNS Suffix Search List. . . . . . : home

Ethernet adapter Ethernet:

Connection-specific DNS Suffix . : home
Description . . . . . . . . . . . : Realtek Gaming 2.5GbE Family Controller
Physical Address. . . . . . . . . : 10-FF-E0-A5-FA-A2
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
IPv4 Address. . . . . . . . . . . : 192.168.1.75(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Lease Obtained. . . . . . . . . . : 03 May 2025 19:27:50
Lease Expires . . . . . . . . . . : 04 May 2025 19:27:50
Default Gateway . . . . . . . . . : 192.168.1.1
DHCP Server . . . . . . . . . . . : 192.168.1.1
DNS Servers . . . . . . . . . . . : 192.168.1.1
NetBIOS over Tcpip. . . . . . . . : Enabled

Wireless LAN adapter WiFi:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Realtek 8852CE WiFi 6E PCI-E NIC
Physical Address. . . . . . . . . : 60-FF-9E-3F-5B-7A
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes

Wireless LAN adapter Local Area Connection* 9:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft Wi-Fi Direct Virtual Adapter
Physical Address. . . . . . . . . : 62-FF-9E-3F-5B-7A
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes

Wireless LAN adapter Local Area Connection* 10:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft Wi-Fi Direct Virtual Adapter #2
Physical Address. . . . . . . . . : 66-FF-9E-3F-5B-7A
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes

Ethernet adapter Bluetooth Network Connection:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Bluetooth Device (Personal Area Network)
Physical Address. . . . . . . . . : 60-FF-9E-3F-5B-7B
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes

 

[monshmosh]

Hop 4 on your traceroute doesn't give an IP address? That's weird in and of itself.

The first hop is your router, the second hop is your computer, then an unknown address, then your computer again (based on the name only), then unknown. Unknown/unresponsive hops are pretty normal after exiting your network, as ping and traceroute are often dropped by intervening network devices.

Do you get the same weird traceroute when you test from the Wi-Fi device? Do you get the same result during both good times and bad?

"same results from connecting my mobile data" - What does this mean? Not using your ISP but using your cell phone provider network you have the same issue? What IS your ISP? Are you just using the gateway they provided?

Windows also has a "reset network" option that might do more than you got from changing drivers, but it doesn't sound like that's going to be a fix. You need to figure out why traffic is passing to your router then back to your PC then to another device then to your PC again.

It's unlikely, but I'm wondering if there's actually an IP conflict with your ISP's network. If they have a parts of their network using 192.168.1.x and have improperly configured their network to actually route that subnet to the rest of the world, you could be getting a reply on hops 2 and 4 from THEIR device that makes it look like YOUR device. That might not have anything to do with your latency issue, but it COULD if it meant your end is not receiving reply packets and they have to be re-sent due to them being intermittently sent to the wrong destination.

If you change the subnet of your network in the router to something different like 10.10.10.x, maybe it would resolve the issue. Assuming your ISP didn't also improperly use and route that subnet.

While you're logged into the router, check your WAN address. Just to see if you've got a real public external IP. You can also use whatismyip.org to see what your IP is shown as, and then do a traceroute to that address. If it's more than one hop then you're behind carrier-grade NAT, sharing a public IP with many other people, which can cause random issues.

My ISP is Three, using their 5G Broadband as it doesn't utilise the very iffy copper wiring in my area. By mobile data, my phone provider is Vodafone so the mobile data will be Vodafone. Unless there was some issue with 5G I don't know what the possible link could be.
I will try change the subnet of my network as advised for now, thank you!

 

[bill001g]

If we look at your main complaint this is all likely because you are running on a mobile broadband link. First like any kind of wireless you suffer from random interference which will cause inconsistent ping times. The next issue with mobile broadband depends on the details of the contact. Many of these have fine print that say things like in times of heavy usage of their network your traffic maybe given less priority than other traffic. They tend to favor expensive cell phone plans over home internet connections. Even if they don't explicitly say that most mobile broadband connections will favor mobile users over stationary ones. They can just delay your traffic a bit but the mobile user since they are moving and jumping from cell tower to cell tower the user might actually get their session dropped if the tower does not respond quickly to them.

Mobile broadband generally is not as good as most hardwired connections. I guess the some particular wired installation might be worse but the design of these systems says wire should be more stable.

This though does not explain the extremely strange tracert you are getting. It does actually appear that the traffic goes to your router and then is sent back to your PC. Both hop 1 and hop 2 are in your house because of the extremely low latency. This would mean the router is sending the data back to your pc BUT if this was actually true the pc would just send the data back to the router and it would constantly loop between those 2 IP. This means it is not what it really appears to be .

It would be very helpful if hop 3 actually gave a IP. When you don't see a IP it most times means the ISP has configured the router to not give you a response but it can also be duplicate networks.

Could you have 2 different routers in your house.

I think your idea to change the IP range is a good one. Because of the strangeness you already have I would use something very uncommon like 10.200.200.1 or maybe 172.16.200.1. These ranges are also private IP but since they are much larger block if you pick uncommon IPs like "200" subnet it is less likely to duplicate.

 

[Ralston18]

@monshmosh

Not sure that I understand the "big picture" here.

Are you able to sketch out a simple diagram of your network and internet connections.

Nothing fancy - just how your network connectivity is set up.

You can scan or photograph the sketch and then post the sketch here via imgur (www.imgur.com > "New post").

Objective being to compare the "tracert" results with the physical reality.

As has been noted something is amiss - e.g. two routers?

Overall, I am thinking a network loop of some sort.

 

[evermorex76]

Could some sort of proxy device or software (possibly malware) cause a traceroute like that? PC sends the request to the proxy IP via the router, and if the proxy is somehow on the PC itself, the router sends it back to the PC, which manipulates it in some way to send the packet to the 3rd hop which won't respond, which then sends it back to the PC which then passes it onward to the correct IP? But I would expect hop 5 to be the router again if that was happening.

Maybe this is even hopping to SOMEONE ELSE's router on the Three network which defaults to the same subnet, if Three really fouled up their configurations.

I really think there is an issue with OP's home network IP range duplicating something that Three is using in their network. And being a 5G broadband connection, it's HIGHLY likely that they're behind carrier-grade NAT, because Three does use it just like other wireless providers. Three is almost certainly doing a poor job of configuring their network and allowing those RFC1918 addresses to propagate, aside from the dumbness of even using the same subnet inside their network that their home user's equipment is defaulting to. I wonder if they actually are using that as the WAN subnet on the router. (OP needs to log into that device and look at the information, as well as visiting the site to check what their public IP is seen as.)

This is what a quick search found for the default LAN IPs used by Three equipment and a MAC lookup from the arp results shows it's a Zyxel unit:
192.168.0.1 for ZTE hubs, 192.168.8.1 for Zyxel hubs, and 192.108.8.1 for Huawei hubs

So, at the least, it seems like OP is connecting directly to the ISP-provided device so there should be no other equipment.

Running Wireshark when trying to traceroute or ping would tell you whether the packets are actually being bounced back to your PC, but aside from malware, I can't see how that could possibly be happening without either just dying or causing a permanent loop of packets going between the router and the PC, for all traffic.

By mobile data, my phone provider is Vodafone so the mobile data will be Vodafone. Unless there was some issue with 5G I don't know what the possible link could be.

Try to use a tool like Ping & Net on your phone to run a traceroute while you're connected to Vodafone, and definitely not connected to the Wi-Fi on your Three router and show us the results. I suppose it's possible the two companies are sharing the same equipment but even if they were using the same physical equipment I would expect them to have their data segregated, like with VLANs. But if they aren't sharing, then that would mean two companies both having the exact same bad configuration.

 

[Ralston18]

Very interesting.....,

@monshmosh

I have been thinking about or imagining connection paths and configurations that could create the tracert results being returned.

When the problems began are you aware of any new neighbors or changes in your area? Any new ISP boxes, etc.. Especially if you are in a apartment building, dorm, or location with multiple residents....

Think about where you live (not asking) just consider that someone may have tapped in to the ISP lines or some other network point and are trying to get free service via their own equipment. May be attempting to spoof your service.

I still suggest a sketch of everything and include a walk around to look for where all the wires etc. go. Do so safely and look for unexplained connections or devices.

Trace it all out. Any connections that go "out of sight" are suspect. Especially if the wires look new.... Old connections can be "reconnected" so do not discount those wires.

Sketch it all out with as much information as possible. Include device makes, models, IPs, and macs.

Scan or photograph you sketch. Does not need to be fancy - simply clear to read and understand.

Post here via imgur (www.imgur.com > Green "New post" icon).

Someone may recognize the problem as a result. Some sort of loop perhaps.

 

[evermorex76]

Think about where you live (not asking) just consider that someone may have tapped in to the ISP lines or some other network point and are trying to get free service via their own equipment. May be attempting to spoof your service.

Very hard to tap into a 5G broadband connection... I just assumed this is OP's own service, with their own device in their own home, where someone would actually have to penetrate physically to make a connection to one of their LAN ports/cables, or compromise the Wi-Fi.

 

[kanewolf]

Never heard of this before, what can I do about this? After looking it up I found that you can detect if this is the case with a CMD command, this was the result, unsure if anything here is suspicious or out of the ordinary:
Interface: 192.168.1.75 --- 0x10
Internet Address Physical Address Type
192.168.1.1 78-c5-7d-35-b9-30 dynamic
192.168.1.255 ff-ff-ff-ff-ff-ff static
224.0.0.5 01-00-5e-00-00-05 static
224.0.0.22 01-00-5e-00-00-16 static
224.0.0.251 01-00-5e-00-00-fb static
239.255.255.250 01-00-5e-7f-ff-fa static

I have not seen a post where you say you tried a portable Linux OS rather than Windows. That is REALLY something you need to do.

 

[Ralston18]

@evermorex76

Re:

"Very hard to tap into a 5G broadband connection... I just assumed this is OP's own service, with their own device in their own home, where someone would actually have to penetrate physically to make a connection to one of their LAN ports/cables, or compromise the Wi-Fi."

Yes and no.

Not at all uncommon in many places for people to "tap in" to steal services: power, cable, internet, water, etc..

Either cooperatively or otherwise.

That possibility needs to be independently checked and eliminated. One way or another.

[Side bar: When our daughter was in college the boy's in the next house tapped into her house's cable service. All it took was a cable splitter and a length of cable.]

In agreement with @kanewolf - OP should try other things. I.e., portable Linux OS.

May or may not solve the immediate problem per se.

However, it is important to eliminate other possibilities.

 

[evermorex76]

Not at all uncommon in many places for people to "tap in" to steal services: power, cable, internet, water, etc..

Yes, but, you can't tap into a 5G radio signal to steal service, that's all I was saying. You can only do it from the LAN. So really it depends on how OP's home is set up. If it's just a short cable from the Zyxel (which only has two ports) to the PC, then there is no way that anybody could have physically tapped in without it being very obvious (and involving breaking and entering). If the wiring runs through the walls then they'd still at least have needed to cut through the walls and cut and reterminated the cable and put a switch in. A lot different from tapping into a service line on the outside with a splitter, or power tap, or a T in the water line.

(It's also not really possible to tap into any wired Internet services from the outside, since they depend on the device registration or PPPoE login or the like. You can't run two cable modems on one line without having service enabled for them both, for example. And DSL modems just wouldn't work on the same phone line, and also need to be registered. Stealing fiber service would be a lot of work physically and would also have the registration issue. I don't think any ISP provides any form of service that is just a bare Ethernet-type link with no authentication or verification of service, and no service has just an external box that does that function and then just has an Ethernet cable accessible from the outside.)

 

[dingo07]

I'm not even going to read all the posts here, because what you stated in the OP says it all. If you are on your mobile phone, using cellular data and not on your wifi, then clearly it's not your network that's the problem. It's a carrier/ISP issue. Call them and have them send a technician with a meter to meter the drop at your apartment, I'm sure a tech worth some salt will figure it out when you show him your phone connected to cellular has the issue.

 

[evermorex76]

I'm not even going to read all the posts here, because what you stated in the OP says it all. If you are on your mobile phone, using cellular data and not on your wifi, then clearly it's not your network that's the problem. It's a carrier/ISP issue. Call them and have them send a technician with a meter to meter the drop at your apartment, I'm sure a tech worth some salt will figure it out when you show him your phone connected to cellular has the issue.

"I'm going to reply without reading even if it repeats what other people said or is nonsense when further information is known."

If you'd read the posts, you'd know he's using a 5G broadband gateway which is where the issue originally was seen, and mentioned mobile because it was seen on that ALSO, with a different provider, so there's nothing to measure, and since it's intermittent that would be somewhat pointless anyway, trying to get a tech to see it at the exact moment it happens. OP couldn't even show it consistently in the time it took to run a ping test and then a traceroute. (I've never heard of a mobile service provider sending a technician to "meter" anything for an individual customer. Wired providers can typically perform at least initial measurements without sending a tech out.)

I'm still not actually clear on the "mobile" part of it anyway, since both mobile data and Wi-Fi were referred to in reference to the phone, so I just don't know if OP actually means they were seeing it when ONLY connected to Vodafone without Wi-Fi on their phone.

 

[Ralston18]

Many questions remain......

And people honestly (or dishonestly sometimes) are always trying to do all sorts of things and find workarounds and fixes.

Or unknowingly (or knowingly) fail to mention some relevant detail.

I would really like to see a basic line diagram (or some other sketch) of the existing network and all devices.

Some like the following example line diagram:

ISP === (coax, DSL, fiber) ===> Modem ---->[WAN Port] Router [LAN Port] ----> [LAN Ports] ---> Wired Network devices
And Router ~~~~~ >Wireless devices.

= = = =

The tracert and arp -a results show that something is amiss.

Back to basics.

Determine if network performance improves with a simplified network.

Verify all device makes and models, IP adddresses, and macs. Check that all cables meet Ethernet Cat 5e specs (no flat cables, all copper UTP, AWG 22-24) and are known to work.

If so, then add devices one by one, allowing time between device additions, to ensure that the network is and remains stable.

At this point I believe that is it up to @monshmosh to provide more information including specific details.

Details matter.

 

[evermorex76]

At this point I believe that is it up to @monshmosh to provide more information including specific details.

Damn them for having other things going on in their life. :-D

 

[Ralston18]

As do we all.