dsouza
October 6, 2021, 1:38am
1
As already discussed in a previous thread (now closed), the 5GHz Wifi on this device seems to have serious issues.
I just tested again with 21.02 on my RE200 v2 and the problem remains. The maximum power for the 5Ghz radio is only 9mW which makes it unusable (see below). I tested with the stable 21.02 build as well with today's snapshot build, same results. I've tried changing channel, country, bandwitdth, all for nothing.
So I would like help from anyone with RE200 v4 to check if it also has this issue or if the 5Ghz power is normal. I would be willing to upgrade my v2 to v4 if I could be sure it would fix the 5Ghz radio.
Thanks!
dsouza
November 14, 2021, 1:03am
2
Just an update: as of Nov 13th, 2021, this problem still exists in all current releases for the RE200 v2 as well as the snapshot builds.
I just tested a new snapshot build today and the 5Ghz radio is still capped at 9dBm and does not work, as can be seen below.
BusyBox v1.34.1 (2021-11-13 20:29:41 UTC) built-in shell (ash)
_______ ________ __
| |.-----.-----.-----.| | | |.----.| |_
| - || _ | -__| || | | || _|| _|
|_______|| __|_____|__|__||________||__| |____|
|__| W I R E L E S S F R E E D O M
-----------------------------------------------------
OpenWrt SNAPSHOT, r18084-b5ab6d0bc5
-----------------------------------------------------
root@ap6:~# cat /proc/cpuinfo | grep machine
machine : TP-Link RE200 v2
root@ap6:~# iw phy phy1 channels
Band 2:
* 5180 MHz [36]
Maximum TX power: 9.0 dBm
Channel widths: 20MHz HT40+ VHT80
* 5200 MHz [40]
Maximum TX power: 9.0 dBm
Channel widths: 20MHz HT40- HT40+ VHT80
* 5220 MHz [44]
Maximum TX power: 8.0 dBm
Channel widths: 20MHz HT40- HT40+ VHT80
* 5240 MHz [48]
Maximum TX power: 8.0 dBm
Channel widths: 20MHz HT40- HT40+ VHT80
* 5260 MHz [52]
Maximum TX power: 8.0 dBm
No IR
Radar detection
Channel widths: 20MHz HT40- HT40+ VHT80
DFS state: usable (for 779 sec)
DFS CAC time: 60000 ms
* 5280 MHz [56]
Maximum TX power: 8.0 dBm
No IR
Radar detection
Channel widths: 20MHz HT40- HT40+ VHT80
DFS state: usable (for 779 sec)
DFS CAC time: 60000 ms
* 5300 MHz [60]
Maximum TX power: 8.0 dBm
No IR
Radar detection
Channel widths: 20MHz HT40- HT40+ VHT80
DFS state: usable (for 779 sec)
DFS CAC time: 60000 ms
* 5320 MHz [64]
Maximum TX power: 8.0 dBm
No IR
Radar detection
Channel widths: 20MHz HT40- VHT80
DFS state: usable (for 779 sec)
DFS CAC time: 60000 ms
* 5500 MHz [100]
Maximum TX power: 8.0 dBm
No IR
Radar detection
Channel widths: 20MHz HT40+ VHT80
DFS state: usable (for 779 sec)
DFS CAC time: 60000 ms
* 5520 MHz [104]
Maximum TX power: 8.0 dBm
No IR
Radar detection
Channel widths: 20MHz HT40- HT40+ VHT80
DFS state: usable (for 779 sec)
DFS CAC time: 60000 ms
* 5540 MHz [108]
Maximum TX power: 8.0 dBm
No IR
Radar detection
Channel widths: 20MHz HT40- HT40+ VHT80
DFS state: usable (for 779 sec)
DFS CAC time: 60000 ms
* 5560 MHz [112]
Maximum TX power: 8.0 dBm
No IR
Radar detection
Channel widths: 20MHz HT40- HT40+ VHT80
DFS state: usable (for 779 sec)
DFS CAC time: 60000 ms
* 5580 MHz [116]
Maximum TX power: 8.0 dBm
No IR
Radar detection
Channel widths: 20MHz HT40- HT40+ VHT80
DFS state: usable (for 779 sec)
DFS CAC time: 60000 ms
* 5600 MHz [120]
Maximum TX power: 8.0 dBm
No IR
Radar detection
Channel widths: 20MHz HT40- HT40+ VHT80
DFS state: usable (for 779 sec)
DFS CAC time: 60000 ms
* 5620 MHz [124]
Maximum TX power: 8.0 dBm
No IR
Radar detection
Channel widths: 20MHz HT40- HT40+ VHT80
DFS state: usable (for 779 sec)
DFS CAC time: 60000 ms
* 5640 MHz [128]
Maximum TX power: 8.0 dBm
No IR
Radar detection
Channel widths: 20MHz HT40- HT40+ VHT80
DFS state: usable (for 779 sec)
DFS CAC time: 60000 ms
* 5660 MHz [132]
Maximum TX power: 8.0 dBm
No IR
Radar detection
Channel widths: 20MHz HT40- HT40+ VHT80
DFS state: usable (for 779 sec)
DFS CAC time: 60000 ms
* 5680 MHz [136]
Maximum TX power: 8.0 dBm
No IR
Radar detection
Channel widths: 20MHz HT40- HT40+ VHT80
DFS state: usable (for 779 sec)
DFS CAC time: 60000 ms
* 5700 MHz [140]
Maximum TX power: 8.0 dBm
No IR
Radar detection
Channel widths: 20MHz HT40- HT40+ VHT80
DFS state: usable (for 779 sec)
DFS CAC time: 60000 ms
* 5720 MHz [144]
Maximum TX power: 8.0 dBm
No IR
Radar detection
Channel widths: 20MHz HT40- VHT80
DFS state: usable (for 779 sec)
DFS CAC time: 60000 ms
* 5745 MHz [149]
Maximum TX power: 8.0 dBm
No IR
Channel widths: 20MHz HT40+ VHT80
* 5765 MHz [153]
Maximum TX power: 9.0 dBm
No IR
Channel widths: 20MHz HT40- HT40+ VHT80
* 5785 MHz [157]
Maximum TX power: 9.0 dBm
No IR
Channel widths: 20MHz HT40- HT40+ VHT80
* 5805 MHz [161]
Maximum TX power: 9.0 dBm
No IR
Channel widths: 20MHz HT40- HT40+ VHT80
* 5825 MHz [165]
Maximum TX power: 9.0 dBm
No IR
Channel widths: 20MHz HT40- VHT80
* 5845 MHz [169] (disabled)
* 5865 MHz [173] (disabled)
root@ap6:~#
The RE200 v4 uses the same WLAN hardware and driver as the v2, so I assume it would have the same problem.
