My daughter uses my connection when she calls round and recently has begun to have problems connecting her iPhone 4 with wifi to the PN Thomson Router.
I swapped routers from a BT HH2 as the Thomson gave stronger wifi signal (according to inSSider) but if I swap back to the HH the problem is still there. The error message is "unable to connect to the network". My Android phone connects with no problem although an ageing Dell laptop is a bit erratic.
It would be appreciated if anyone could comment if they have been getting the same error message.
A browse over the internet indicates that this is a fairly common problem but nobody seems to have a definitive answer.