This router behavior has continued (disconnecting almost every day and then staying disconnected). This morning the data was disconnected and I had to reboot several times before connection was re-established, but after that I have lost access to the router entirely - diagnostics tells me "remote device refuses to accept connection". Have rebooted several times, no success, resetting is tricky as router is installed outside, on the roof of my house. So without access to the router, can't obviously generate the troubleshooting file either. Will send the troubleshooting file when will regain access to the gateway