MT6000 access slow, tons of log errors.

Technical Support for Routers
1

OpenWrt 21.02-SNAPSHOT r15812+1084-46b6ee7ffc
Kernel Ver 5.4.238
Admin Panel 4.7.4

Been getting some serious slowdowns on both internet access and web UI access to the router itself.
Recently updated the firmware that was supposed to address 5Ghz slowdowns.

the log files are full of kernel warnings and errors.
hu Apr 17 20:49:19 2025 kern.warn kernel: [503623.452549] WiFi@C14L2,twt_itwt_agrt_exist() 202: Duplicated twt mode is found
Thu Apr 17 20:49:19 2025 kern.err kernel: [503623.459904] WiFi@C14L1,twt_agrt_request() 996: twt_agrt with wcid=10, flow_id=0 exist, Accept

Anyone else having issues like this?
What would cause this, and is there something I can change to make it stop?

2

Well, all my issues are fixed now that I went to straight Open-WRT SW.
Ah well.. was trying to give GL.iNET SW a chance, but it just had too many issues.

3

Hi,

Very sorry for this issue.

If can, please install GL firmware v4.7.4 for MT6000, and help us gather some information:

  1. issue syslog
  2. wireless client model
  3. when a 5GHz WiFi slowdown occurs, is the wired speed rate normal? On wired and wireless clients, ping the public IP, i.e: ping 8.8.8.8 and ping the router LAN IP, i.e: ping 192.168.8.1
  4. wireless configuration, SSH to the router: cat /etc/config/wireless
  5. network topology and how to reproduce the issue, it will better have some screenshots or video recording to clearer the phenomena.
  6. disbale "TWT" and try again to see, SSH to the router: iwpriv ra0 set twtsupport=1:0 and iwpriv rax0 set twtsupport=1:0
4

Well, here's a log dump for you that I did before I changed out the SW, but I am not going to go back to 4.7.4 as the hardware is working perfectly with OpenWRT 24.10.1 installed.
It's a pretty simple home setup attached to a cable modem.
Now that it's working correctly, I'm happy with the setup as is.

logread.tar (233.5 KB)

5

Hi,

Now you installed the Vanilla OpenWRT firmware on the MT6000 or the GL v4.7.5-op24 firmware?

EDIT:

We'd like to test the v4.7.4 or v4.7.7 in your router and scenario. As checked the syslog attached, it is found to be related to the TWT module, it is suspected that this problem is likely to be caused from the TWT, system log and kernel log almost print TWT log.

TWT is a power-saving mode, and client in power-saving mode will definitely have much slower data access.
If you are willing to cooperate with our analysis, please collect network info and try the following verification:

  1. Number and model of clients connected to MT6000, and the channel / frequency bands connected to.

  2. Export the configurations on Luci > System > Backup/Flash Firmware when reproduced the issue.

  3. Please let us know how to step to reproduce issue, what operations were done, and whether to modify the configuration

  4. Please collect this information, SSH to router and execute the commands, and share the print result with us:

while true;do echo ----;iwpriv rax0 show stainfo;echo ----;iwpriv rax0 show stacountinfo;echo ----;iwpriv rax0 show stat;echo ----;iwpriv rax0 show MibBucket;echo ----;iwpriv rax0 show mibinfo;echo ----;iwpriv rax0 show tpinfo=0-2;echo ----;iwpriv rax0 show vow_info;echo =======;sleep 3;done
  1. Execute on the SSH:
    Try temporarily disable TWT to verify whether wireless works:
iwpriv ra0 set twtsupport=1:0
iwpriv rax0 set twtsupport=1:0