HTC Wildfire S - wifi suddenly stopped detecting only my home network

[swathi malavika]

i was using my wifi perfectly till now but suddnely there was a power cut n the wifi stopped normally n gets connected as soon as the power is back but this time my device ( htc wildfire s ) did not even detect my home network it is detecting all the other home networks ,open networks ........... my home network is getting detected in all the other devices like laptop n other anriod phones
............. i tried by restarting my phone several time , removing the network i.e forgetting the network , i even turned off the power of my wifi routor ...... the wifi is not getting detected i my phone only ..................... plzzz help me to fix this problem