Indeed, that little bit of information about also having FIOS helps tremendously. I was thinking to myself "thanks for sharing, but how is that relevant to me."
I should have also stated that I too have FiOS however, I turned off the wireless on the Actiontec Router and bought a more reliable Wireless router (Belkin).
Short answer is yes, there is known (by apple) issues that cause routers to crash, Facetime being the main culprit for this on the 4s, it seems to happen to quite a lot of users out there me included, and it supposed to be fixed in iOS 5.1 when they release it, till then there is nothing you can do to stop this from what I have been told and have read as the idevice sends the occasional rouge thing to router which causes the crash, so I am assuming it is something in the uPnP (although I could be wrong on this)
Okay thanks for the replies. I am leaning towards the fact that something happened with the iPhone itself recently that is causing it. Because as I shared, zero issues up until this past week. So history is telling me it is not the router if I did not have issues in the past. So I think some kind of App Update, or some kind of iOS Software Update, or something along those lines that is the culprit. Just to many Apple users in this thread alone saying they have issues with WiFi and their Apple devices. So I am going to try disabling some services on my iPhone and take it from there.
YEs it is. The deli i visit every day has a verizon fios router and i cannot use wifi in the area of his router at all. I cannot even use another access point. I wonder if its the router and not your iphone since it happens to me with a fios router also.