Hello,
I had the WIFI problems with my Shelly devices too (are still active in UNIFI, but have no IP address, reconnect does nothing, only with short power off you get the Shelly back into WIFI)
I also have the latest firmware on it (1.9.3 RC4).
I would like to share what I had last configured for WIFI settings in UNIFI on the Shellys.
With the following settings I had no more problems (configured that for all my IOT-stuff, everything else has its own WIFI-SSID):
WIFI-Settings:
Security: WPA-Personal
Multicast & Broadband: not checked
Fast roaming: not checked
WPA mode: only WPA2, only AEW/CCMP
GTA re-keying every 3600 seconds
UAPSD: checked
Multicast IPMPv3: checked
BBS Transition: not checked --> I think this is important!
everything until PMF is not checked
PMF: disabled
DTIM-Mode: not checked (no standard)
DTIM-Intervall (2.4 GHz): 3
everything else till the end: not checked / configured.
Then on every device I changed the radio settings:
RADIO (2.4 GHz):
channel width: VHT20
channel: fixed to 1, 6 or 11 (not automatic and do not take channel 12 or 13. I had strange problems with it sometimes, take different channels, do not take the same channel for all devices)
Transmission power: high (not automatic)
minimum RSSI: not enabled.
RADIO (5 Ghz):
As you wish (I have everything on automatic)
Firmware Unifi devices:
1x UAP-nanoHD Version 5.43.19.12493
2x UAP-IW-HD Version 5.43.19.12493
I somehow think that one or more of these settings play a role.
Maybe UNIFI some users can post which settings they have and - if different to mine - try once these given settings.
So far I had not noticed in the posts that the WIFI settings were talked about. Maybe that should be considered.
Even if the Shelly should of course work with "usual" settings (automatic and so on), it may help Shelly to better narrow down the error, if there are working settings and non-working settings
Greetings and merry chrismas!
Sebastian
Almost 100% experiece:
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