[Closed] iPhone has decided not to recognise home wifi....

Presuming it can see the network, tries to connect but it doesn't work for some reason?

Or does it just not see it at all?

Sees it, tries to connect but can't seem to do it. Tried forgetting it and restarting with the password; no joy. Tried turning it off and on again; no joy.

Reset wireless settings on your phone and it will work. I hate apple btw so your lucky I replied 😛

Wife's ipod touch did the same thing. Delete your wifi network from the phone and refind it. Worked for me.

Tried all the above with no joy.

Eventually worked by turning off the router and restarting it, then redoing the password on the iPhone.

It appears from a casual browse on the net that it is a well known fault and is down to Apple being shit.

A 'casual' browse eh? Nudge nudge wink wink, say no more. A nod's as good as a wink to a blind bat etc...

A casual browse for 'iPhone 4S can't connect to home wifi' is most interesting...

Try renewing the lease. I had an issue a few years back with interference from neighbours wifi networks. If you can see more than about 5 or 6 then it can drop out (the wireless channels overlap so ideally you should be two away from any other wifi network you can see). I replaced my router with a dual band one and all had been perfect since. I doubt its your phone. When I was having my issues my work PCM wouldn't connect at all. At least my apple kit connected for a while and just dropped out occasionally, but renewing the lease worked until I changed to router.

I doubt its your phone

Then perhaps you could explain why the Blackberry, the HTC phone, the Samsung phone and the other iPhone as well as the 2 laptops all seem to be able to connect to the wifi without issue?

Then perhaps you could explain why the Blackberry, the HTC phone, the Samsung phone and the other iPhone as well as the 2 laptops all seem to be able to connect to the wifi without issue?

You're router is struggling with the DNS entries rebooting temporarily fixed this.

Well, like I said, my work PC couldn't connect at all, so go figure. Who knows with these things. Even HP, my companies IT consultants costing us millions of pounds a year to consult couldn't sort it out. In the end I sorted it myself after hours of googling, trial and error, handfuls of hair being torn out and educating myself about wireless networks. Should be simple enough to establish if its your network or the evil Apple thats the issue: Does your iPhone have issues with other networks? If it doesn't its your network. Do other iPhones/ apple devices have issues with your network, if so its Apple.