Sonos App Not Connecting to Wifi

So I waited a couple of days, and it just came back. Had to add speakers back to Wi-Fi but app all good. So glad I did not go through the steps above. I am still a little frustrated with the whole system. Every few months, it’s something. The speakers no longer connect. The App stops working. Still wondering if it’s all worth it

It just made no sense that all of a sudden my Wi-Fi router was blocking the Sonos app when it had been working fine for two years and no changes were made to my router or the Sonos app. 

Unless the network is correctly setup, “accidents” can happen and things might work OK for a while, then the phantom strikes. One of the more frustrating accidents occurs if you have not “reserved” IP addresses in your router. 100 times in a row, you could get away without incident while rebooting and updating things, then the phantom strikes. The incorrect assumption is that the last installed or updated application XYZ has a bug, but this “bug” could have been prevented with correct network setup.

SONOS requires more robust network services than simple web browsing and email.

Are you saying that I should be manually controlling my router, manipulating settings, IP addresses, etc. through the xFI app rather than just letting it do its thing? I am not particularly tech savvy and do not do anything with my router other than occasionally unplugging it and plugging it back in when needed. I do not have the app to do this, and I am not sure I want it. Just one more thing. 

Inside the router is a function similar to the receptionist at the building entrance who gives everyone a unique number as they enter. This “IP address” is assigned by the “DHCP Server” (the receptionist). If someone spills coffee into the little box she uses to track things or she runs off to get married, (or the router is reset) the box is simply dumped and the numbering starts over. Unfortunately, there is no general broadcast asking everyone to stop back and take a new number. Everyone continues to use their old number. As you can imagine, this can create chaos if duplicates are assigned — “where’s my order?”, “I didn’t order that”, “… is not replying.”, etc.

”Reservation” creates a VIP list and these clients are always assigned the same IP address, thus avoiding duplicates. A SONOS update creates demands on the DHCP Server and the little tracking box is at risk.

A potentially frustrating aspect of duplicates is that IP addresses are “leased”. Clients periodically return to the server and “renew” their lease. While this tends to resolve duplicates over time, this is not guaranteed. Over a period of days, a wrecked network could heal. This gives rise to the complaint that “it didn’t work yesterday, but it works today”.

The Community regulars started using reservations years ago, and we don’t have duplicate IP address issues.

Of course, this is not the only possible network issue, but the percentage is so high that reservations are the low hanging fruit on the “fixit tree”.

Thank you for your detailed response. A bit too technical for me but glad the community regulars have found a way to avoid these issues. Sounds like a lot (I’m sure it’s not for a lot of folks) to just play and listen to  music when I can just use my old Bose portable speaker and connect thru Bluetooth.