Problem with wireless adapter

Elite007

Distinguished
Sep 1, 2013
53
0
18,530
Actually I am facing problem with my desktop's WiFi, all of a sudden when I booted my pc in morning, when i tried to connect to my WiFi network, it says unable to connect to the network, i disabled and enabled the network adapter several times, updated drivers, restarted my pc but no avail. other devices (android phones, laptop) were working perfectly! then I changed the wifi mode to B only which was G only and it started working again without any problems, i also tried BGN mixed mode and B+G mode but didn't worked. my network card is TP LINK WN-751ND which supports BGN modes but currently all of a sudden only B mode is working while all other devices work on all modes. I also changed the slot of the adapter but no avail.
so i am totally clueless that what went wrong here. my pc specs are:

C2D E6600 2.4GHZ
2GB RAM
NVIDIA 9600GT 512MB
320GB SATA HDD