Hello everyone,
I got my home setup up to 11 APs controlled via Capsman:
It basically did what I wanted it to do until I updated to the 7.18.2 package on all devices. After that, I still can see my virtual “Shelly-122” and “Uhlandstr.-122-Guest” WiFis, but I can’t connect to the 2,4 Versions of them both. Using a Windows laptop, it simply refuses, looking at the registration table, I see it populating with many clients (house is full of Shelly WiFi clients, 160ish…), but they slowly fade away and turn to “failure” in the ARP table trying to connect to them is so slow that it’s impossible. It is the “wireless” Capsman Version that I am using, since the devices are a bit older.
Has anyone any ideas here? Any help would be appreaciated
AP-OG-Wohnzimmer-2024-08-02.rsc (2.77 KB)
AP-Terrasse-Oben-2024-08-02.rsc (2.55 KB)
capsman-router-2024-08-02.rsc (18 KB)
Didn’t have a good look, but noticed you are running 2.4GHz radios on 40MHz bandwidth. Can you give it a try by disabling extension channel? Then you might have less interference (if that is causing the problems).
Thanks for the answer. It seemingly was related to the frequency setup. I specified new Channels like this:
add band=2ghz-g/n control-channel-width=20mhz extension-channel=disabled \
frequency=2412,2437,2462 name="2,4 GHz Range" skip-dfs-channels=yes
add band=5ghz-a/n/ac control-channel-width=20mhz extension-channel=XXXX \
frequency=5180,5260,5500,5580,5660,5745 name="5 GHz Range" \
skip-dfs-channels=yes
and now it works like a charm. Makes me wonder why it has worked before… 
This leads to a follow-up question: If one does not specify anything about “save selected” and no re-select interval (as the wireless Capsman allows this) what would happen? Are there default reelection processes going on or what is the case?
AFAIK it will remain on the selected channel. That is, as long as there is no radar detected. But that is only on DFS channels, that are skipped according to yourconfig (at least, on the 5GHz radio).
add band=5ghz-a/n/ac control-channel-width=20mhz extension-channel=XXXX \
frequency=5180,5260,5500,5580,5660,5745 name="5 GHz Range" \
skip-dfs-channels=yes
Can you explain why you set skip dfs channels to yes, while you set DFS frequencies as well?
Well, I copy - pasted just some example Frequency Setup without thinking too much Might need to optimize it. What would be good reselection intervalls, like some best practice values?
I resselect every 2-3 hours. It will perform a background scan and if there is a better frequency it will set it. But be aware that this can interrupt on DFS channels. It depends on your situation and surroundings.