Linksys E8450 throughput issue -- WITH FIX

Installing and Using OpenWrt
1

After upgrading from last stable to 24.10.0, the bitrate for the 5-G radio was ~ 250 Mbit/s. This was about half what I was getting in last stable. The culprit was a conservative htmode value in /etc/config/wireless. This is what I did to fix so it is now getting over 500 Mbit/s at 25 feet from router:

  1. ssh to router (use putty if windows)
  2. copy '/etc/config/wireless' to '/etc/config/wireless.orig'
  3. edit '/etc/config/wireless'
  4. under config wifi-device 'radio1', change option htmode (mine was 'HE20') value to HE160
  5. save
  6. restart radio1 from luci under Network | Wireless
  7. connect a device to the 5-G wireless access point and check bitrate (or use a speedtest) to confirm improvement.

I hope this helps someone.

~Gig

2

This can be set in the GUI. Edit any AP on the 5 GHz radio and confirm that near the top of the page, "Mode" is set to "AX" and "Bandwidth" is 160.

The country code must be set properly (check that the other radio is also set to the same country) and the channel if not auto set to one that allows 160 MHz in your country.

3

Thank you, mk24. That is good to know and a great addition to the fix.

For additional reading on the wireless settings, see /etc/config/wireless

4

Certainly add option country 'BE' to 5GHz radio section matching your country code to get 160MHz channels IF they are available in your place at all.