Asus GT-AXE16000 on 10gbps with PPPOE

[le_florin]

Hi,
I have a situation with the Asus GT-AXE16000 on 10gbps PPPOE connection.

When i`m downloading at high speed at over 3gbps from my 10gbps pc, in parallel (multiple websites), all tcp connections freeze after a few minutes of download, also the new ones, with any internet ip from any device wireless or wire.

Ping works from any device on any internet ip without any loss, at any time.

After i stop the downloads, the tcp connections will work again after a few minutes of waiting.

If i limit the link speed of my 10gbps pc to 2.5gbps, the problem dont appear.

The problem appears only for 5gbps and 10gbps link speeds and affects all devices connected to the router via wireless or wire.

Below is an exemple of a download that ramains stucked (this is one of 10 parallel downloads from different websites, that i launched for the test)

C:\Users\PC-1\Desktop>"C:\Program Files (x86)\GnuWin32\bin\wget" --debug http://mirror.efect.ro/centos/7.9.2009/isos/x86_64/CentOS-7-x86_64-Everything-2009.iso
SYSTEM_WGETRC = c:/progra~1/wget/etc/wgetrc
syswgetrc = C:\Program Files (x86)\GnuWin32/etc/wgetrc
DEBUG output created by Wget 1.11.4 on Windows-MinGW.

--2022-08-27 19:14:17--  http://mirror.efect.ro/centos/7.9.2009/isos/x86_64/CentOS-7-x86_64-Everything-2009.iso
Resolving mirror.efect.ro... seconds 0.00, 91.209.189.249
Caching mirror.efect.ro => 91.209.189.249
Connecting to mirror.efect.ro|91.209.189.249|:80... seconds 0.00, connected.
Created socket 568.
Releasing 0x011e8a50 (new refcount 1).

---request begin---
GET /centos/7.9.2009/isos/x86_64/CentOS-7-x86_64-Everything-2009.iso HTTP/1.0
User-Agent: Wget/1.11.4
Accept: */*
Host: mirror.efect.ro
Connection: Keep-Alive

---request end---
HTTP request sent, awaiting response...
---response begin---
HTTP/1.1 200 OK
Date: Sat, 27 Aug 2022 16:14:18 GMT
Server: Apache/2.4.41 (Ubuntu)
Last-Modified: Mon, 02 Nov 2020 15:18:02 GMT
ETag: "260000000-5b3214099034d"
Accept-Ranges: bytes
Content-Length: 10200547328
Keep-Alive: timeout=5, max=100
Connection: Keep-Alive
Content-Type: application/octet-stream

---response end---
200 OK
Registered socket 568 for persistent reuse.
Length: 10200547328 (9.5G) [application/octet-stream]
Saving to: `CentOS-7-x86_64-Everything-2009.iso.14'

34% [=========================>                                                   ] 3,547,398,114 --.-K/s  eta 2m 38s

and here if i run again the download it stays like this for any website i put in the wget, for a few minutes:

C:\Users\PC-1\Desktop>"C:\Program Files (x86)\GnuWin32\bin\wget" --debug http://mirror.efect.ro/centos/7.9.2009/isos/x86_64/CentOS-7-x86_64-Everything-2009.iso
SYSTEM_WGETRC = c:/progra~1/wget/etc/wgetrc
syswgetrc = C:\Program Files (x86)\GnuWin32/etc/wgetrc
DEBUG output created by Wget 1.11.4 on Windows-MinGW.

--2022-08-27 19:16:12--  http://mirror.efect.ro/centos/7.9.2009/isos/x86_64/CentOS-7-x86_64-Everything-2009.iso
Resolving mirror.efect.ro... seconds 0.00, 91.209.189.249
Caching mirror.efect.ro => 91.209.189.249
Connecting to mirror.efect.ro|91.209.189.249|:80... seconds 0.00, connected.
Created socket 572.
Releasing 0x012c8a50 (new refcount 1).

---request begin---
GET /centos/7.9.2009/isos/x86_64/CentOS-7-x86_64-Everything-2009.iso HTTP/1.0
User-Agent: Wget/1.11.4
Accept: */*
Host: mirror.efect.ro
Connection: Keep-Alive

---request end---
HTTP request sent, awaiting response...

CPU and memory usage on the router dont rise when i execute the parallel download test at any speed.
I use the latest Asus stock firmware.

 

[le_florin]

i found a similar problem here: https://access.redhat.com/solutions/1309313
(my problem is that i experience that on any device connected to the router (wireless or wire))

 

[RTWZ80]

Not sure if this will help but perhaps you could check out this thread if you have't yet. RMerlin did some iperf tests with the 10G ports on the router and found some limitations.

It's teaser-time. Because why not.

You mean the 4916 right? BCM4912 has two SXGMII ports, BCM4916 has three SXGMII ports. That's why the GT-AXE16000 is able to provide two 10 Gbps ports.

www.snbforums.com

 

[le_florin]

the problem persists for few minutes after i close the downloads and the network load on router is near 0.

 

[RTWZ80]

Has Asus Tech Support said anything about the issue you're facing?

 

[RTWZ80]

Perhaps you could shift your request to the main AXE16000 Owner's thread as people there tend to be more responsive.

GT-AXE16000 Owner's Thread

I've had zero issues with my wifi clients all on WPA3 with 160mhz on both 5ghz and 6ghz bands. Latest merlin firmware is rock solid! Wifi 6E for my s22 ultra works amazing as well very stable, fast and had zero disconnect issues with any client other than my stupid LG washer/dryer that will not...

www.snbforums.com

 

[le_florin]

Has Asus Tech Support said anything about the issue you're facing?

i did, i wait for the response.

 

[le_florin]

It seems like after i change the mtu on my windows pc, tcp connections start to work again.

if i come back to the old mtu, tcp connections dont work (for a few minutes)

so if i dont change the mtu i have to wait a few minutes in order for tcp connections to work
or
i can change the mtu and all new tcp connections are working.

if i make the test again and the tcp connections dont work again... i change the mtu again and so on...

(all clients connected to the router that have set the stucked mtu, all will have this problem until they wait a few minutes or change their own mtu)

(i also tried with a qnap router and the problem is the same)

Anyone know why this happens?

 

[le_florin]

it was an isp issue. and it was solved.