Slow and droping wifi 2.4ghz

[bbunge]

Some of my iot devices still use only WPA.

Then set up a Guest WIFI on 2.4 GHz for the IoT devices with a unique SSID and set it with WPA/WPA2-Personal. I've done that for some of my older clients when I ran WPA2/WPA3-Personal.

 

[sfx2000]

Then set up a Guest WIFI on 2.4 GHz for the IoT devices with a unique SSID and set it with WPA/WPA2-Personal. I've done that for some of my older clients when I ran WPA2/WPA3-Personal.

I can't say that WPA/WPA2 is a good thing these days - WPA2 is the min I would run, and if tri-band (2.4/5/6) then look at WPA2/WPA3 for devices that support 5 and 6GHz..

WPA is legacy stuff, and not very secure... and WPA/WPA2, the group runs on TKIP, which is the problem with WPA...

 

[zauzaupt]

I can't say that WPA/WPA2 is a good thing these days - WPA2 is the min I would run, and if tri-band (2.4/5/6) then look at WPA2/WPA3 for devices that support 5 and 6GHz..

WPA is legacy stuff, and not very secure... and WPA/WPA2, the group runs on TKIP, which is the problem with WPA...

I know what you mean, but I live on country, the house that is near to me is about 900m. I think I'm safe from wifi hacking.

 

[zauzaupt]

So, appears that running draytek as gateway and Asus routers in AP mode, things get more stable. Gonna give more 24h testing, then will try ap mode in mesh to see. But, it's a bottle neck for internet....

 

[Crimliar]

I'm wondering what the info from System Log > Wireless Log would have looked like, and if that could have highlighted any issues. I had a single device that would occasionally fall back to 802.11g and when it did, it took the connection speeds of everything on the AP with it - unlike N, AC, or AX.

Current Station list:

Stations List ---------------------------------------- idx MAC Associated Authorized RSSI PHY PSM SGI STBC MUBF NSS BW Tx rate Rx rate Connect Time xx:xx:xx:xx:xx:xx Yes Yes -35dBm ac No Yes Yes Yes 2 20M 240.6M 216.5M 00:03:45 xx:xx:xx:xx:xx:xx Yes Yes -45dBm ac No Yes Yes No 2 20M 240.6M 173.2M 00:04:06 1 xx:xx:xx:xx:xx:xx Yes Yes -50dBm n No Yes Yes No 1 20M 72.2M 6M 00:09:17 1 xx:xx:xx:xx:xx:xx Yes Yes -47dBm n No Yes Yes No 1 20M 72.2M 6M 00:09:18 1 xx:xx:xx:xx:xx:xx Yes Yes -48dBm n No Yes Yes No 1 20M 65M 65M 00:09:19 1 xx:xx:xx:xx:xx:xx Yes Yes -43dBm n No Yes Yes No 1 20M 72.2M 72.2M 00:09:19 1 xx:xx:xx:xx:xx:xx Yes Yes -46dBm n No Yes Yes No 1 20M 72.2M 72.2M 00:09:20 1 xx:xx:xx:xx:xx:xx Yes Yes -41dBm n Yes Yes Yes No 1 20M 65M 11M 00:09:20 1 xx:xx:xx:xx:xx:xx Yes Yes -42dBm n No Yes Yes No 1 20M 65M 72.2M 00:09:20 1 xx:xx:xx:xx:xx:xx Yes Yes -46dBm n No Yes Yes No 1 20M 65M 72.2M 00:09:21 1 xx:xx:xx:xx:xx:xx Yes Yes -61dBm n Yes Yes No No 1 20M 72.2M 54M 00:09:28 1 xx:xx:xx:xx:xx:xx Yes Yes -48dBm n No Yes Yes No 1 20M 72.2M 19.5M 00:09:29 1 xx:xx:xx:xx:xx:xx Yes Yes -37dBm n No Yes Yes No 1 20M 72.2M 72.2M 00:09:36 1 xx:xx:xx:xx:xx:xx Yes Yes -43dBm n Yes Yes Yes No 1 20M 65M 11M 00:09:37 1 xx:xx:xx:xx:xx:xx Yes Yes -38dBm n Yes Yes Yes No 1 20M 65M 11M 00:09:38

 

[sfx2000]

Try setting 2.4Ghz "Channel Bandwith" to 20Mhz.

And look at the WPA config... some of the Legacy IOT devices may have issues with WPA3 (or WPA2/3)

 

[sfx2000]

I'm wondering what the info from System Log > Wireless Log would have looked like, and if that could have highlighted any issues. I had a single device that would occasionally fall back to 802.11g and when it did, it took the connection speeds of everything on the AP with it - unlike N, AC, or AX.

That's interesting - that shouldn't happen for most devices, but with Broadcom WL, who knows, as that's all managed with the Broadcom internals inside the interface itself as an FMAC device... Is this just an artifact of the driver reporting, or if this is real - e.g. do AX clients on 2.4 actually fall back to 11g speeds?

I've done a fair amount of work on the linux wireless interfaces, so when I look at Association ID's, each client is handled independently, and in 2.4 it's still kind of messy - we've got ERP (11g), HT20/40 (11n), HE20/40 (11ax), and EHT20/40 (11be) and non-standard VHT20/40 in 2.4 (11ac was 5GHz only).

The logic for 2.4GHz has always been a bit odd because of the legacy (11b) and non-standard (VHT in 2.4) and how to keep things good for interop purposes...

It would be really bad if one has an older Printer or other IoT device that would limit the entire band to legacy speed...

 

[zauzaupt]

So, after some days and several reset to the devices, i discovered that is something to do with the DHCP server.
since on my previous router as main and the other just as AP, was stable enough e started from there.
i setup the lease time to 1h, and lowered the pool to only adressed 80 ip between 192.168.55.10 - 90 and fixed most of my devices above 192.168.55.100.

this way all is more stable now.
weird part is when i had the rt-ax86u i didnt had any of this issues...

 

[zauzaupt]

this is the current setup, but i noticed that 160mhz on 5ghz band is gone
is it because the ax55 is a wifi node?

 

[Tech9]

Since 160MHz wide channels all include DFS channels - it may be gone at any time.