Anyone get an answer to this? I’m suffering this same. 3 or 4 disconnects a day sometimes more. Get the notifications on my phone.
I’ve been seeing error logs of the name localhost not being given to a dhcp address but that was found to be a samsung smart tv. As Samsung decided it was a clever thing to do to have their smart tv announce itself as “localhost” when requesting a dhcp address and this cant be changed I settings on the tv. (Seriously what sort of numpty decides that’s a good idea?)
Anyway it seems to stem from around the same time I bought this particular tv that these disconnects started. May be coincidence.
I’m going to try disconnecting that smart tv (when the kids aren’t glued to netflix) and see if that aids the smartthings frequent disconnect issue.