Thanks for sharing more about your issue @SOHO. It is interesting you were able to tie this to devices connecting to the WiFi network. In your case, this would lean towards a bug in the WiFi stack somewhere that would crash the router under certain conditions. On 7.1 when I had those issues randomly I was thinking of that kind of a bug, however in my case it became oddly regular (4d10h ±6h) with 7.1.1, with the exception of occasional random crashes before it reaches that mark (those are probably the random ones I was getting on 7.1 already). I still can’t understand why it would be so regular on 7.1.1 while it was random on 7.1. There might be multiple bugs we are after, one that was there already on 7.1 causing those random crashes, and a new one linked to resource exhaustion (maybe) on 7.1.1, which would explain why it is so regular given our usage patterns.
Regarding things to try:
Since yesterday I have enabled the watchdog (see here) and disabled my daily reboot which was to prevent it from reaching the 4d mark where it would crash and potentially require manual intervention. In theory, with the watchdog activated, it will not require a manual intervention when it crashes, so I can just let it run. Since I have turned on the watchdog, I have had one automatic reboot which may have been one of those random crashes, or the watchdog might be a bit too nervous and may have triggered under load if the router was a bit late servicing the timer… not sure yet. I will continue monitoring and see if it can run for multiple days like before. In any cases, I would rather have more reboots than hangs that require manual interventions…
Hopefully this gets fixed soon though because those reboots disrupt work in the office, and interrupt conference calls etc…
Finally, thank you for agreeing to change the thread topic name, it should help getting the community’s attention. However, for some reasons I don’t see the name change reflected on my side. Was the change saved?