Hey everyone!
I am glad to hear that we are finding some resolutions to the issue by changing or updating the lease times for the affected routers/modems.
The options for setting this will vary based on make/model of the device. In some cases this may be managed by the ISP.
If you can set the lease times yourself through the modem settings, awesome. If not, you can try forcing a reset of the device itself at a time you do not typically use the modem. You may need to unplug the power to the device and leave it unplugged for 30 minutes+ to help ensure the cached data your ISP uses to assign your DNS and IP address is cleared and in theory that should put your renewal at that time.
In some cases you may need to contact your ISP and work out a better leasing timeframe if they control this and there are no options to adjust it on your end.
For anyone whose disconnected are confirmed tied to the Lease times, this should solve your issue, however if the connection issues are not tied to those lease timeframes, there may be other issues happening. I recommend in those cases starting your own thread or if your symptoms match another existing and current thread, joining the discussion there.