I have openwrt implementation on a TPLink WR902AC (pocket router)
I have a /etc/network/wireless configuration file with 10 sta configurations for connecting to AP all of which are active (option disabled '0')
This is to ensure that openwrt connects to any one of the APs configured.
Only the first 4 configured are attempted to be connected and the rest are simply ignored. (if first 4 configured are not available the 5th one is being ignored)
I tried to identify the bottleneck.
Only first 4 wpa_supplicant instances are called as evident from these files in /tmp/run
./tmp/run/wpa_supplicant/wifi3
./tmp/run/wpa_supplicant/wifi1
./tmp/run/wpa_supplicant/wifi2
./tmp/run/wpa_supplicant/wifi0
When I disable the first one, the fifth one gets connected on reconnect with "wifi"
I tried to check the source code. I lost the track after ubus being called from wifi script.
This I believe is similar question to https://forum.openwrt.org/t/limit-on-the-number-of-wifi-ssids/63141
iw list on openwrt show me the limit.
valid interface combinations:
* #{ IBSS } <= 1, #{ managed, AP, mesh point, P2P-client, P2P-GO } <= 4,
total <= 4, #channels <= 1, STA/AP BI must match
I tried to use wpa_supplicant directly instead of depending on scripts.
wpa_supplicant -c /root/wifi0.conf -i wifi0 -s -B
wpa_supplicant -c /root/wifi1.conf -i wifi1 -s -B
wpa_supplicant -c /root/wifi2.conf -i wifi2 -s -B
wpa_supplicant -c /root/wifi3.conf -i wifi3 -s -B
wpa_supplicant -c /root/wifi4.conf -i wifi4 -s -B
wpa_supplicant -c /root/wifi5.conf -i wifi5 -s -B
This failed with "interface wifi4" not available error.
Could someone point me to the source where this hard limit is set?
Is there any way around this?
Thanks in advance.
Update:-
mt7601u based usb WiFi dongle was added to wr902ac and configured (as radio2)
This time only one is connected. If I have AP configured, sta doesn't even get connected.
so number of slots is limited. (ap counts as one slot and each sta is one slot)
The built-in 2.4 GHZ has 4 slots & 5 GHz has 8 slots.
The mt7601u based wifi has only 1 slot.
Probably there exists a usb dongle that has 8 slots. Could someone point me to the theory behind all this?
