Hi there. I just encountered a problem since yesterday that matches exactly like yours!?
Suddenly my lumia 920 can't see my home wifi. Rebooted phone & router for so many times but the problem still occurs. My iPhone & laptop can connect just fine.
So did you manage to solve the problem?
I have similar issue. Not sure is it due recent Nokia update or not but yesterday I updated my phone on work and when I come to home - phone won't able to connect to home WIFI(I don't have any issues with WIFI before). But my situation is even worse - phone don't see my home WIFI at all It shows the list of my neighbor WIFI even with almost no signal strength. But it doesn't show my network. I rebooted phone and router number of times. I delete SSID on phone. I even changes some network parameters on router - no luck.
My laptop and wife's iphone see and connect to WIFI without any problems. Anyone have any idea whats going on?
I was having the exact same issue as yours, can't detect my home network but all others even with no signal. Anyhow I manage to solve it today.
If your wifi router can support multiple wireless SSID/ Name, assign a new name for it and let the current & new name up together. Now my lumia 920 can detect my home network and connected to it, so far it is working.
I'm baffle as to why is this happening when my wifi setup was working fine since day one of getting the phone? There were no FW updates on the phone that could have caused this. I have not messed with the router either, therefore all settings were left untouched. The only updates on the phone were from Apps. I'm unsure if some app updates could have caused changes to the phone wifi?
Problem solved - it turns out the router channel setting was at AUTO. Therefore when it switches to other channel due interference from neighbour's wifi, the Lumia was unable to detect it. Disabling the "auto" & fixing the channel in the router restored the home wifi detection on the phone.