RT-AX86U Pro WiFi 5Ghz issues

[janekiwan]

Hello Guys,
I bought RT-AX86U Pro about half year ago. Everything was working fine till last week. In my home there was some electricity maintenance. They suddenly turn off power in my flat. After bringing it back, I noticied some issues with router. I was thinking that maybe this is some issue with ONT from ISP, but all tests went fine. Also I found out, that my issue happens when Smart Connect is switching clinets to 5Ghz. I turn off Smart Connect, and it seems that on 5Ghz max speed is about 50Mbps, and have a lot of hickups. With 2,4Ghz access works fine, as well with ethernet. I tired several settings, firmware changes (merlin and original), factory resets, wifi channels, etc. But still I see performance issues on 5Ghz. Is this is possible that hardware of 5Ghz radio were broken during electricity maintenance?

BTW I also noticed that temperatures on radios are much lower then it was before (about 10-15 degrees lower).

 

[bbunge]

Hello Guys,
I bought RT-AX86U Pro about half year ago. Everything was working fine till last week. In my home there was some electricity maintenance. They suddenly turn off power in my flat. After bringing it back, I noticied some issues with router. I was thinking that maybe this is some issue with ONT from ISP, but all tests went fine. Also I found out, that my issue happens when Smart Connect is switching clinets to 5Ghz. I turn off Smart Connect, and it seems that on 5Ghz max speed is about 50Mbps, and have a lot of hickups. With 2,4Ghz access works fine, as well with ethernet. I tired several settings, firmware changes (merlin and original), factory resets, wifi channels, etc. But still I see performance issues on 5Ghz. Is this is possible that hardware of 5Ghz radio were broken during electricity maintenance?

BTW I also noticed that temperatures on radios are much lower then it was before (about 10-15 degrees lower).

Sure is possible. Do you have a surge suppressor on the power supply? If not you should. My router is on a UPS.

You might try a factory reset and manually reconfigure.

 

[janekiwan]

Sure is possible. Do you have a surge suppressor on the power supply? If not you should. My router is on a UPS.

You might try a factory reset and manually reconfigure.

Of course I don't have, and router is supplied by electric socket which is built-in directly in fuse box... Yep I know not too smart...
Yes I did factory reset and configure everything manually on both Merlin and original software. Without any improvement unfortunately.

 

[glens]

Maybe the power brick was incapacitated and the router itself is okay. Got another compatible supply to try instead?

 

[janekiwan]

Can be. Thanks for advice, just ordered two power supplies with 12V/3A. Let's see.

 

[Tech9]

What link speeds your devices show in System Log, Wireless Log?

When you have an issue you collect data first and go from there. The data you need is in the GUI.

 

[janekiwan]

In case bellow client FFF is trying to play youtube video

in 4K, with bitrate about 58Mbps. And it has hickups all the time. When in 2.4Ghz the same video with same bitrate on same client play smoothly.
In the same time my mobile phone AAA, keeps loosing voWiFi each 5-10 minutes, when it looses it it has hickup at about 1 minute, network can't be reached there, including webgui of router itself.

On other devices I'm not able to check but from my expirience they also will get hickups from time to time.
All the devices are in the same room, so there can't be range issues.

SSID: "XXX"
noise: -86 dBm Channel: 36/160
BSSID: YYY Capability: ESS RRM
Supported Rates: [ 6(b) 9 12(b) 18 24(b) 36 48 54 ]
HE Capable:
Chanspec: 5GHz channel 50 160MHz (0xe832)
Primary channel: 36
HT Capabilities: 40Mhz SGI20 SGI40
Supported HT MCS : 0-31
Supported VHT MCS:
NSS1 Tx: 0-11 Rx: 0-11
NSS2 Tx: 0-11 Rx: 0-11
NSS3 Tx: 0-11 Rx: 0-11
NSS4 Tx: 0-11 Rx: 0-11
Supported HE MCS:
80 Mhz:
NSS1 Tx: 0-11 Rx: 0-11
NSS2 Tx: 0-11 Rx: 0-11
NSS3 Tx: 0-11 Rx: 0-11
NSS4 Tx: 0-11 Rx: 0-11
160 Mhz:
NSS1 Tx: 0-11 Rx: 0-11
NSS2 Tx: 0-11 Rx: 0-11
NSS3 Tx: 0-11 Rx: 0-11
NSS4 Tx: 0-11 Rx: 0-11
QBSS Channel Utilization: 0x14 (7 %)

Interference Level: Acceptable
Mode : AP Only

DFS status: state In-Service Monitoring(ISM) time elapsed 892050ms radar channel cleared by DFS channel 36/160 (0xE832)

Channel Information
----------------------------------------
Channel 36 A Band
Channel 40 A Band
Channel 44 A Band
Channel 48 A Band
Channel 52 A Band, RADAR Sensitive
Channel 56 A Band, RADAR Sensitive
Channel 60 A Band, RADAR Sensitive
Channel 64 A Band, RADAR Sensitive
Channel 100 A Band, RADAR Sensitive, Passive
Channel 104 A Band, RADAR Sensitive, Passive
Channel 108 A Band, RADAR Sensitive, Passive
Channel 112 A Band, RADAR Sensitive, Passive
Channel 116 A Band, RADAR Sensitive, Passive
Channel 120 A Band, RADAR Sensitive, Passive
Channel 124 A Band, RADAR Sensitive, Passive
Channel 128 A Band, RADAR Sensitive, Passive
Channel 132 A Band, RADAR Sensitive, Passive
Channel 136 A Band, RADAR Sensitive, Passive
Channel 140 A Band, RADAR Sensitive, Passive
Channel 144 A Band, RADAR Sensitive, Passive
Channel 149 A Band
Channel 153 A Band
Channel 157 A Band
Channel 161 A Band
Channel 165 A Band

Stations List
----------------------------------------
idx MAC Associated Authorized RSSI PHY PSM SGI STBC MUBF NSS BW Tx rate Rx rate Connect Time
AAA Yes Yes -52dBm ax Yes Yes Yes Yes 2 160M 2268.5M 6M 00:00:54
BBB Yes Yes -50dBm ax Yes Yes No No 2 80M 1134.2M 24M 00:12:05
CCC Yes Yes -50dBm ax No Yes Yes No 2 80M 286.8M 1201.0M 00:12:26
DDD Yes Yes -41dBm ax Yes Yes No No 2 160M 2268.5M 24M 00:13:35
EEE Yes Yes -49dBm ax No Yes Yes Yes 2 160M 2161.8M 2401.9M 00:14:19
FFF Yes Yes -42dBm ax Yes Yes Yes Yes 2 80M 1201.0M 1201.0M 00:14:42

Dec 20 01:02:29 bsd: bsd: Sending act Frame to FFF with transition target eth7 ssid YYY
Dec 20 01:02:30 wlceventd: wlceventd_proc_event(695): eth7: ReAssoc FFF, status: Successful (0), rssi:-39
Dec 20 01:02:30 wlceventd: wlceventd_proc_event(662): eth6: Disassoc FFF, status: 0, reason: Disassociated because sending station is leaving (or has left) BSS (8), rssi:0
Dec 20 01:02:30 wlceventd: wlceventd_proc_event(662): eth6: Disassoc FFF, status: 0, reason: Disassociated because sending station is leaving (or has left) BSS (8), rssi:0
Dec 20 01:02:31 bsd: bsd: STA:FFF no response
Dec 20 01:02:31 bsd: bsd: Sending act Frame to FFF with transition target eth7 ssid YYY
Dec 20 01:02:32 bsd: bsd: STA:FFF no response

 

[Tech9]

What happens if you switch to Ch.36 at 80MHz wide?

 

[janekiwan]

Same, I was trying this already as well with auto channel choice in both 80Mhz and 160Mhz wides.

 

[Tech9]

In this case I would agree something is not right with this router. You perhaps have warranty on it, request RMA.