Hi @vsense, sorry for the delay in getting back to you.
I’m unsure as to why your SSID would have changed, i’ll check here internally if it was a firmware update that may have triggered this?
Regardless, we do have a handy guide on how to change your wi-fi settings (How to change your Wi-Fi name and/or password) that should let you reset your wi-fi to your preference and connect your devices to it.
Hope this helps!