rt-ax88u wifi connection slows

[peterson65]

i have a rtx-88u it is connected to a rt-ax57 by ethernet as a mesh setup. i have a strange problem that i cannot figure out. my cell phone if its connected to the main router and i do a speed test i have a fast rate but it i try lets say hours later or overnight it went from around 400mbps to only 16. if i turn off the phone wifi and reconnect its fast again. if i bind it to the mesh router the rt-ax57 it never happens i have checked every setting i could find any ideas or is the router dying. i do have stock firmware and the latest. thanks

 

[degrub]

do you turn off your phone's connection to LTE cellular while testing ?

Also, the client ( phone in this case) determines which AP it connects to. Possible that the phone is still connecting to the main router , but a reduced bandwidth because of distance/signal level.

 

[peterson65]

so after trying more stuff standing next to the router it was still slow. standing next to the other mesh router i have a fast connection. go back to the rtx-88u and its slow wifi and it was not changing untill i rebooted the router then it was fast for over 24 hours but only the wifi gets slow my ethernet connections are never effected. dont know why i would have to be rebooting the rtx-88u from now on but never the rt-ax57. should i try to go back a firmware version?

 

[Tech9]

Look at System Log, Wireless Log. It shows connected devices and link speeds and will give you clues what is happening. As troubleshooting step select 2.4GHz fixed channel 6 at 20MHz channel bandwidth and 5GHz fixed channel 36 at 80MHz channel bandwidth. This is as "standard" as it gets. Test again for some time.

 

[peterson65]

i set it to what you said. still doing it. not sure what to look for in the log.



SSID: "netport"
noise: -92 dBm Channel: 6
BSSID: A0:36:BC:B7:02:58 Capability: ESS ShortSlot RRM
Supported Rates: [ 1(b) 2(b) 5.5(b) 6 9 11(b) 12 18 24 36 48 54 ]
HE Capable:
Chanspec: 2.4GHz channel 6 20MHz (0x1006)
Primary channel: 6
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

Interference Level: Acceptable
Mode : AP Only

Stations List
----------------------------------------
idx MAC Associated Authorized RSSI PHY PSM SGI STBC MUBF NSS BW Tx rate Rx rate Connect Time
24:5A:B51:23:87 Yes Yes -55dBm n Yes Yes Yes No 1 20M 65M 14.4M 00:17:40
50:8A:06:4C:95:66 Yes Yes -73dBm n Yes Yes Yes No 1 20M 57.8M 1M 03:05:52
50:8A:06:5A:1F:0A Yes Yes -73dBm n Yes Yes Yes No 1 20M 57.8M 1M 03:05:52
58:00:E3:22:74:7B Yes Yes -35dBm n Yes Yes Yes No 2 20M 130M 1M 14:59:09
A0:92:08:1D:82:8D Yes Yes -51dBm n No Yes Yes No 1 20M 65M 72.2M 22:14:59
E4:15:F6:71:92:BD Yes Yes -66dBm n Yes Yes No No 1 20M 72.2M 2M 22:15:00
D8:8C:79:36:74:4B Yes Yes -41dBm n No Yes Yes No 1 20M 65M 72.2M 22:15:02
F0:C7:7F:3A:B4:C6 Yes Yes -38dBm n No Yes No No 1 20M 72.2M 72.2M 22:15:04
38:BE:AB:7C:15:3D Yes Yes -60dBm n No Yes Yes No 1 20M 57.8M 5.5M 22:15:15
5C:62:5A:EA:38:3A Yes Yes -54dBm n No Yes No No 1 20M 39M 72.2M 22:15:15

SSID: "netport_5GHz"
noise: -91 dBm Channel: 36/80
BSSID: A0:36:BC:B7:02:5C Capability: ESS RRM
Supported Rates: [ 6(b) 9 12(b) 18 24(b) 36 48 54 ]
HE Capable:
Chanspec: 5GHz channel 42 80MHz (0xe02a)
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

Interference Level: Acceptable
Mode : AP Only

DFS status: state IDLE time elapsed 0ms radar channel cleared by DFS none

Channel Information
----------------------------------------
Channel 36 A Band
Channel 40 A Band
Channel 44 A Band
Channel 48 A Band
Channel 52 A Band, RADAR Sensitive, Passive
Channel 56 A Band, RADAR Sensitive, Passive
Channel 60 A Band, RADAR Sensitive, Passive
Channel 64 A Band, RADAR Sensitive, Passive
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
BE:81:FD:4C:7B:B3 Yes Yes -59dBm ax Yes Yes No Yes 2 80M 864.7M 6M 00:04:37
B4:E4:54:22:79:93 Yes Yes -62dBm ac Yes Yes Yes Yes 2 80M 780M 6M 22:15:14
44:6D:7F:47:C5:51 Yes Yes -52dBm ax Yes Yes Yes Yes 2 80M 1201.0M 6M 22:15:15

 

[Tech9]

And which one is the device you test with? Does it switch from 5GHz to 2.4GHz band for whatever reason?

 

[peterson65]

BE:81:FD:4C:7B:B3 allways shows wifi 6 on the phone connection

 

[Tech9]

You may have Wi-Fi 6 on 2.4GHz band as well. When it happens look at Wireless Log and see where this phone is connected and with what RSSI level and link rate. Mobile devices have power saving features and in general speed testing may not be accurate. Test with different client as well. It may be specific client issue.

 

[peterson65]

so yesterday i unlinked my other router the mesh router and havent had a problem with the phone since. so what would that mean. the phone was connected to my main router when the slow connection allways happened

 

[Tech9]

Hard to tell without further investigation. AiMesh uses the same channels, the compatibility between different ASUS routers is in wishful thinking category, Wireless Log may not reflect frequent changes, etc. Sometimes even playing with the firmware settings may break it. If you call ASUS Support the first thing they'll recommend is factory reset and start over.

 

[peterson65]

thanks, i may call it a day. i moved the mail router actually lower in my basement and it seems to have a better signal upstairs so maybe going past a beam or something now so i may just sell the other router. thanks

 

[Tech9]

If you can eliminate AiMesh - better.