Hello kinda new in this networking stuff. So I'm using a Ruijie RG-AP820-L V3. My ISP provides 400Mbps. When connected via Ethernet, I consistently get that speed. However, over Wi-Fi, I only get around 150Mbps, occasionally reaching 250Mbps. The channel width is already set to 80MHz, and my laptop shows a PHY rate of 1201Mbps. I've tested with both Cat 6 and Cat 8 cables, and the results are the same
Question Internet Speed Limit
- Thread starter IT-Guy18
- Start date
- Oct 11, 2014
- 39,227
- 4,326
- 146,290
Update your post to include full system hardware specs and OS information.
Include PSU: make, model, wattage, age, condition (original to build, new, refurbished, used)?
Disk drive(s): make, model, capacity, how full?
List of all connected peripherals.
= = = =
On the laptop ensure that only one network adapter (be it wired or wireless) is enabled at any given time.
Not both network adapters.
= = = =
Run "ipconfig /all" (without quotes) via the Command Prompt.
Post the full results.
You should be able to copy and paste the results without needing to retype everything.
Include PSU: make, model, wattage, age, condition (original to build, new, refurbished, used)?
Disk drive(s): make, model, capacity, how full?
List of all connected peripherals.
= = = =
On the laptop ensure that only one network adapter (be it wired or wireless) is enabled at any given time.
Not both network adapters.
= = = =
Run "ipconfig /all" (without quotes) via the Command Prompt.
Post the full results.
You should be able to copy and paste the results without needing to retype everything.
Cat8 cable is likely fake you don't see them outside large enterprise installation that need 40gbit. Real ones are very expensive. That is not related to your wifi issues.
That is a fairly common result with a 1201 connect rate. That number more represents the data encoding that the speed. In some very special unrealistic lab install it might get that speed.
Hard to say exactly why people don't get more. Partially it is because wifi is half duplex and they add transmit and receive speeds together. The wifi guys would call a ethernet cable 2gbit but ethernet can actually send 1gbit and receive 1gbit at the same time.
So a quick look the AP your are using does support 160mhz radio bands. Problem is there are massive number of restrictions on using the part of the 5g radio band that lets you use 160mhz. Many end devices do not support it because the rules are so messy and they vary between countries.
This is one of the key reasons most people saw little difference between wifi5 and wifi6. Wifi5 also uses 80mhz radio bands.
Wifi6e is much better both because there is less interference on 6ghz from neighbors and there is a lot of bandwidth so you can use 160mhz radios without the issues you see on 5ghz.
But it still isn't some magic. You would likely a little bit more than double the speed you currently have. It is not going to do 2gbit no matter what the connect number says.
So maybe a better question is why is it important. A high speedtest number is mostly bragging rights. The only application that can use/needs a lot of bandwidth are large file downlaods. It all depends on how much you do it and how often. In addition most device that are wifi only do not have large areas to store lots of data. Something like a netflix 4k movie only uses 30mbps.
I would just use ethernet if that is a option.
That is a fairly common result with a 1201 connect rate. That number more represents the data encoding that the speed. In some very special unrealistic lab install it might get that speed.
Hard to say exactly why people don't get more. Partially it is because wifi is half duplex and they add transmit and receive speeds together. The wifi guys would call a ethernet cable 2gbit but ethernet can actually send 1gbit and receive 1gbit at the same time.
So a quick look the AP your are using does support 160mhz radio bands. Problem is there are massive number of restrictions on using the part of the 5g radio band that lets you use 160mhz. Many end devices do not support it because the rules are so messy and they vary between countries.
This is one of the key reasons most people saw little difference between wifi5 and wifi6. Wifi5 also uses 80mhz radio bands.
Wifi6e is much better both because there is less interference on 6ghz from neighbors and there is a lot of bandwidth so you can use 160mhz radios without the issues you see on 5ghz.
But it still isn't some magic. You would likely a little bit more than double the speed you currently have. It is not going to do 2gbit no matter what the connect number says.
So maybe a better question is why is it important. A high speedtest number is mostly bragging rights. The only application that can use/needs a lot of bandwidth are large file downlaods. It all depends on how much you do it and how often. In addition most device that are wifi only do not have large areas to store lots of data. Something like a netflix 4k movie only uses 30mbps.
I would just use ethernet if that is a option.
kerberos_20
Champion
- Dec 24, 2011
- 9,911
- 1,590
- 55,740
he wants to achieve just 400mbit, which should be possible with 1.1gbit link, dont you think?
just for fun tested now wifi 6 on 2.4GHz with 286mbit link and got ~135mbit download, which is in line with half duplex
2.4GHz+5GHz (1200mbit link) gives 620mbit download
kerberos_20
Champion
- Dec 24, 2011
- 9,911
- 1,590
- 55,740
can you open router settings and disable 2.4GHz band? then you will see what signal you have on 5GHz, this band gives you most of speed over wifi, 2.4GHz is around ~150mbit, to go beyond, dual band is used to boost up speed, but if connection is weak, it will stay in 2.4GHz band
1201 means he is running 80mhz radio bands which will only run on 5ghz
The 1200 number...ie without the 1 is a silly marketing number. He is talking about the actual connection rate you see.
cruisetung
Upstanding
- Dec 5, 2024
- 324
- 62
- 270
There is something called MCS (Modulation and Coding Scheme ) Index/Table
I'm not wifi expert, believe that @bill001g can ex plain it better.
wlanprofessionals.com
I'm not wifi expert, believe that @bill001g can ex plain it better.
MCS Table and How To Use it – Wireless LAN Professionals
wlanprofessionals.com
i'm using this cat 8 cable to make sure this is not the reason my speed is halved when it connect to the access point. My ruijie just support to 80Mhz radio there is no 160Mhz. And yes the port just support to 1gbit with wifi 6 output.
Hardware : Ruijie RGAP820L - V3, firmware version AP_RGOS 11.9(6)W3B1, Release(11190309)
Power : RG POE AT 30
Output Voltage : 52 V DC, 0.6 A, 31.2W
Port : 1 x 1000Base-T port,
Connected Peripheral : 1 Laptop Device for testing and connected using wireless
===
ipconfig /all
Windows IP Configuration
Host Name . . . . . . . . . . . . : LAPTOP
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Mixed
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No
Ethernet adapter Ethernet:
Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Realtek PCIe GbE Family Controller
Physical Address. . . . . . . . . : E8-80-88-C6-E4-A6
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Ethernet adapter Hamachi:
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : LogMeIn Hamachi Virtual Ethernet Adapter
Physical Address. . . . . . . . . : 7A-79-19-41-36-2D
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
IPv6 Address. . . . . . . . . . . : 2620:9b::1941:362d(Preferred)
Link-local IPv6 Address . . . . . : fe80::6bc2:fa52:8232:af75%13(Preferred)
Default Gateway . . . . . . . . . : 2620:9b::1900:1
DHCPv6 IAID . . . . . . . . . . . : 1090670834
DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-2B-EC-6C-F6-E8-80-88-C6-E4-A6
NetBIOS over Tcpip. . . . . . . . : Enabled
Wireless LAN adapter Local Area Connection* 1:
Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft Wi-Fi Direct Virtual Adapter
Physical Address. . . . . . . . . : D2-39-57-1E-10-B9
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Wireless LAN adapter Local Area Connection* 2:
Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft Wi-Fi Direct Virtual Adapter #2
Physical Address. . . . . . . . . : F2-39-57-1E-10-B9
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
Wireless LAN adapter Wi-Fi:
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Realtek RTL8852BE WiFi 6 802.11ax PCIe Adapter
Physical Address. . . . . . . . . : D0-39-57-1E-10-B9
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Link-local IPv6 Address . . . . . : fe80::9072:7998:82ff:d8c3%6(Preferred)
IPv4 Address. . . . . . . . . . . : 192.168.0.16(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Lease Obtained. . . . . . . . . . : Wednesday, June 25, 2025 8:37:31 AM
Lease Expires . . . . . . . . . . : Wednesday, June 25, 2025 9:11:41 AM
Default Gateway . . . . . . . . . : 192.168.0.254
DHCP Server . . . . . . . . . . . : 192.168.0.254
DHCPv6 IAID . . . . . . . . . . . : 80755031
DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-2B-EC-6C-F6-E8-80-88-C6-E4-A6
DNS Servers . . . . . . . . . . . : 192.168.0.114
8.8.8.8
NetBIOS over Tcpip. . . . . . . . : Enabled
Ethernet adapter VMware Network Adapter VMnet2:
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : VMware Virtual Ethernet Adapter for VMnet2
Physical Address. . . . . . . . . : 00-50-56-C0-00-02
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
Link-local IPv6 Address . . . . . : fe80::ded1:635:ff0:49e7%14(Preferred)
IPv4 Address. . . . . . . . . . . : 192.168.214.1(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . :
DHCPv6 IAID . . . . . . . . . . . : 302010454
DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-2B-EC-6C-F6-E8-80-88-C6-E4-A6
NetBIOS over Tcpip. . . . . . . . : Enabled
Tunnel adapter Teredo Tunneling Pseudo-Interface:
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft Teredo Tunneling Adapter
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
IPv6 Address. . . . . . . . . . . : 2001:0:2851:fcb0:1013:18e2:98b4:e4fd(Preferred)
Link-local IPv6 Address . . . . . : fe80::1013:18e2:98b4:e4fd%17(Preferred)
Default Gateway . . . . . . . . . :
DHCPv6 IAID . . . . . . . . . . . : 301989888
DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-2B-EC-6C-F6-E8-80-88-C6-E4-A6
NetBIOS over Tcpip. . . . . . . . : Disabled
cruisetung
Upstanding
- Dec 5, 2024
- 324
- 62
- 270
Your router does support 160MHz
https://www.ruijie.com/en-global/products/wireless/indoor-access-points/rg-ap820-l-v3
The Wifi things however depends on a lot of factors:
Line of sight, antenna orientation, wall materials, distance, chipsets for sending and receiving sides, and environment noises. Make sure your antennas are not blocked by PC case. Use wifi extension cables if necessary.
BTW, cat8 cable almost 100% is fake.
https://www.ruijie.com/en-global/products/wireless/indoor-access-points/rg-ap820-l-v3
The Wifi things however depends on a lot of factors:
Line of sight, antenna orientation, wall materials, distance, chipsets for sending and receiving sides, and environment noises. Make sure your antennas are not blocked by PC case. Use wifi extension cables if necessary.
BTW, cat8 cable almost 100% is fake.
Last edited:
- May 29, 2013
- 38,606
- 3,801
- 156,790
But, if the physical link is already 1200Mbit, a 600Mbit throughput should be possible. 160Mhz channel width on the router is NOT the right answer. There is something else causing the symptom. Interference from nearby WIFI would be the first thought. But it is also possible that some type of "game optimization" software is running. Something like Asus ROG Game First software. Those types of software artificially slow traffic to ensure game traffic is prioritized. But they severely limit speedtest results.
Would be nice of wifi chips gave more information.
The 1201 number means he in theory at least has very good signals. It is attempting to use QAM1024. This is a very dense data encoding that tends to not work except in the same room as the router. This was one of the key reasons wifi6 did not perform better than wifi5.
Still the devices for some reason think the signal is good enough to run that.
The problem is these dense data encoding are more susceptible to errors caused by interference. This will reduce the speed because of data retransmission. What the chipset should do is renegotiate the data encoding. A less dense data encoding can transfer less data but if it takes less errors it might actually have more throughput.
I don't really know. Wifi is almost a black box. There is very little you can set or change. When you run 80mhz radio channels on 5ghz you really don't have much option/choice to pick. There is only one block you can manual set in most countreis the rest to use them the router must assign them using whatever magic formula it has.
...160mhz is not a options for him. His router/ap supports it but like many his nic only supports 80
The 1201 number means he in theory at least has very good signals. It is attempting to use QAM1024. This is a very dense data encoding that tends to not work except in the same room as the router. This was one of the key reasons wifi6 did not perform better than wifi5.
Still the devices for some reason think the signal is good enough to run that.
The problem is these dense data encoding are more susceptible to errors caused by interference. This will reduce the speed because of data retransmission. What the chipset should do is renegotiate the data encoding. A less dense data encoding can transfer less data but if it takes less errors it might actually have more throughput.
I don't really know. Wifi is almost a black box. There is very little you can set or change. When you run 80mhz radio channels on 5ghz you really don't have much option/choice to pick. There is only one block you can manual set in most countreis the rest to use them the router must assign them using whatever magic formula it has.
...160mhz is not a options for him. His router/ap supports it but like many his nic only supports 80
cruisetung
Upstanding
- Dec 5, 2024
- 324
- 62
- 270
The fact is that wifi is never stable. I have 2 routers/APs and 2 wifi adapters that all of them support 1200ac (866+400) and the distance is at most 20ft away although behind a wall. Most of the time they just fluctuate between 400 and 866Mbps all day long. Many times 5G SSIDs will just disappear. The SSIDs disappear not only happened on PC, it also happened for tablets/smartphones.
Ethernet is always way better than wifi. Wifi is for convenience only if you have no other wired choices.
Last edited:
My access point right now is beside my laptop so i think it have minimum interference.
To confirm it in my ruijie dashboard it doesnt have a 160mhz option, just 80 mhz. It is because the country limit ?
This is my wifi chip Realtek RTL8852BE WiFi 6 802.11ax PCIe Adapter
cruisetung
Upstanding
- Dec 5, 2024
- 324
- 62
- 270
It doesn't mean you won't get interference from environment/neighborhood
And you can use a cable if it sits right besides the AP/router.
TRENDING THREADS
-
Question No POST on new AM5 build - - - CPU & DRAM lights are on ?
- Started by Uknownflowet
- Replies: 13
-
-
-
-
Facebook
Twitter
Instagram