Can't connect Shelly 1PM to my Wifi

I am periodically having issues with multiple shelly devices after updating them all to 1.9.0 especially with with my H&T's.

I had to roll the H&T's back to 1.8.0 since they are part of my climate control and now will be doing the same with my other devices.

To restore connectivity for a short period of time under 1.9.0 I am having to power cycle the access point and the devices.

They honor the last command issued to them but drop off of the WiFi connection at some point and then never reconnect.

Here's the procedure I had to use in order to downgrade the firmware on my H&T's:

RE: No longer able to join Wi-Fi network

Hello

I am exeprienceing the same issue reported by vlado_nemo: I can connect to Shlly 1PM when using its own WiFi (Shelly-xxxxx), as soon as it is ocnfigured in client mode it desappear and it cannot connect to the local WiFi 2.4GHz.

The device has a 20190329-09091 firmware that I am not able to upgrade as the Shelly 1PM cannot be connected to interenet.

How can I troubleshoot this issue? Is there a way to check why the Shelly 1PM is not connecting to the local WiFi.

Thanks