Shelly 2PM Gen4 offline and won't return
I have a mix of four Shelly 2.5 and two Shelly 2PM Gen4 switches that control electric window blinds.
One of the 2.5's and one of the 2PM's randomly go offline. Power cycling at the fuse box consistently brings the 2.5 back, but the 2PM will come back when it decides to come back, sometimes after hours and sometimes after days. Just when I make up my mind to replace it, it shows back up in the network and works as expected.
I started with six of the 2.5s, but two bit the dust. I replaced them with the 2PM Gen4s.
My working theory is that it's heat related, but I'm not savvy enough about these things to know for certain. I suppose it could also be a problem with the current itself, as in spikes and dips, or storms.
The one working 2PM shows firmware 20260311-095857/1.7.5-g9979d16. But I've read here that 2.0.0 is creating issues for some users.
Should I just expect to replace a couple of switches each year and count the cost?
Thanks in advance for any shared insight!