Exclamation [Q] ADB devices offline!!

I recently flashed the revolution hd 4.4.4 v2 rom and I connected my phone to my pc (usb debugging on) and ....adb devices offline.I use android reverse tethering on pc. It worked fine till in fxp325 ....after flashing revolution hd it doesn't work.It may be a driver problem...I looked up in the net and didn't find a perfect solution. I tried updating the drivers , sdk, and adb also....but it dint work out.It detected as device on sony stock rom .. I'm a kinda new to this. plz help...Thanks in advance!!