Question Wired connections take around a minute to connect to the internet (ASUS RT-AX82U AX5400)

[kappamarvin]

I had setup my AX82U router as well as my new modem two days ago, everything works great and looks great on wifi but with my wired connection something is off.

Before this was never an issue on my old nighthawk router but I have noticed that when I turn my PC on (happens on my brothers PS5 as well) we have no internet connection until about a minute later. We’re both using a wired ethernet connection.

I have not noticed any drops and to get into specifics the modem in question is the ARRIS - SURFboard SB6190 and my speeds are 800+ download and 25 upload (Xfinity). I am using the cat5e cable that came with the router to connect between it and the modem.

When I installed the router it prompted me with a firmware update but it was already up to date.

Is there anything I can do? I doubt this is any sort of a hardware issue right?

Here is the syslog (I had performed a factory reset sometime yesterday so that will be seen on there).

 

[Ralston18]

Make and model modem?

How are all of the devices connected?

Normally the connectivity will much similar to the following line diagram:

Connection path being the following line diagram where ----> represents an Ethernet cable:

ISP === (coax, DSL, fiber) ===> Modem ---->[WAN Port] Router [LAN Port] ----> [LAN Port] Office Wifi Access Point ~~~~> Wireless network devices

With other Router LAN ports -----> Wired network devices. E.g. your PC and your brother's P55.

Feel free to edit and correct my line diagram as necessary.

One possible issue is that the modem and the router are both acting as a router. There should only be one router.

On your pc run "ipconfig /all" (without quotes) via the Command Prompt.

Copy and paste the results here.

 

[kappamarvin]

Make and model modem?

How are all of the devices connected?

Normally the connectivity will much similar to the following line diagram:

Connection path being the following line diagram where ----> represents an Ethernet cable:

ISP === (coax, DSL, fiber) ===> Modem ---->[WAN Port] Router [LAN Port] ----> [LAN Port] Office Wifi Access Point ~~~~> Wireless network devices

With other Router LAN ports -----> Wired network devices. E.g. your PC and your brother's P55.

Feel free to edit and correct my line diagram as necessary.

One possible issue is that the modem and the router are both acting as a router. There should only be one router.

On your pc run "ipconfig /all" (without quotes) via the Command Prompt.

Copy and paste the results here.

Here is the modem in question and also the router in question as well.


Here are the results from the command prompt.
Windows IP Configuration

Host Name . . . . . . . . . . . . : Marvins-PC
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Hybrid
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No

Ethernet adapter Ethernet:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Realtek PCIe GbE Family Controller
Physical Address. . . . . . . . . : B4-2E-99-ED-0A-29
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Link-local IPv6 Address . . . . . : fe80::5580:9c04:7a08:df32%4(Preferred)
IPv4 Address. . . . . . . . . . . : 192.168.50.238(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Lease Obtained. . . . . . . . . . : Monday, March 18, 2024 9:07:50 AM
Lease Expires . . . . . . . . . . : Tuesday, March 19, 2024 9:07:49 AM
Default Gateway . . . . . . . . . : 192.168.50.1
DHCP Server . . . . . . . . . . . : 192.168.50.1
DHCPv6 IAID . . . . . . . . . . . : 229912217
DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-2C-AB-D6-0F-B4-2E-99-ED-0A-29
DNS Servers . . . . . . . . . . . : 192.168.50.1
NetBIOS over Tcpip. . . . . . . . : Enabled


So I have my modem connected by the coaxial cable and then I run the cat5e cable that came with the router into the 1 gigabit ethernet port on the modem into the WAN port in my router. My PC and my brothers PS5 are both connected onto the LAN ports on the router.

 

[Ralston18]

The cat5e cable that came with the router: flat or round?

Should not be flat. In any case, swap in another known working (no known problems) Cat5e cable.

Try disabling IPv6 and use only IPv4.

There are other things that can be done or tested. For now just start with the above.

 

[kappamarvin]

The cat5e cable that came with the router: flat or round?

Should not be flat. In any case, swap in another known working (no known problems) Cat5e cable.

Try disabling IPv6 and use only IPv4.

There are other things that can be done or tested. For now just start with the above.

So I had already swapped the cat5e cable 2 times with known working ones and still the same issue (both were round and not flat)

Also disabling IPv6 is giving the same issue.

 

[bill001g]

How much times do you have before it comes up.

Can you compare the IPCONFIG /all output when it broken to when it is OK.

If it looks the same can you ping your router ip 192.168.50.1 when it is broken.

If all this works try changing the DHCP server on your pc to 8.8.8.8. You could also set a fixed IPv4 address but that should not really be necessary.

 

[kappamarvin]

How much times do you have before it comes up.

Can you compare the IPCONFIG /all output when it broken to when it is OK.

If it looks the same can you ping your router ip 192.168.50.1 when it is broken.

If all this works try changing the DHCP server on your pc to 8.8.8.8. You could also set a fixed IPv4 address but that should not really be necessary.

I counted and it usually takes 30-40 seconds before internet connection is established.

I compared the outputs to both when there is a connection and when it is broken and they give me a different IPv4 address as well the default gateway being blank when the connection is broken.

When I tried pinging the router with the connection broken, it comes back with

Pinging 192.168.50.1 with 32 bytes of data:
PING: transmit failed. General failure.
PING: transmit failed. General failure.
PING: transmit failed. General failure.
PING: transmit failed. General failure.

Ping statistics for 192.168.50.1:
Packets: Sent = 4, Received = 0, Lost = 4 (100% loss),

 

[bill001g]

Sounds like there is a issue with the dhcp function on the router maybe. Could be there is a second device also running dhcp on your network.

You can hide the problem by setting a IPv4 address manually. In your case 192.168.50.250 mask 255.255.255.0 gateway 192.168.50.1 will work. Technically you should use ip outside the scope of your router dhcp server. Most give them out from the bottom but you s giving out 238 means it is not the common setup so you would need to check. If your machine complains about a duplicate IP then you need to find something different.

 

[kappamarvin]

Hello everyone, I managed to figure out the solution to my issues which was to disable STP by using the following.

nvram set lan_stp=0
nvram commit
nvram set lan1_stp=0
nvram commit

 

[bill001g]

I assume you did that on the router ?. Last time I saw a NVRAM command it was always related to dd-wrt. Does asus support it in their factory firmware now.

If you didn't know that is spanning tree and used to prevent loops. If you were now plug a ethernet cable directly between 2 lan port your network will eventually lock up.

It is common for consumer routers to not support spanning tree. What is strange is there is a variation of spanning tree that is used on port going to end devices that causes it to activate sooner.

This is a very old/common issue on commercial equipment, I didn't know consumer devices were supporting it.