Android (my phone and tablet) and Windows 8 (desktop, netbook, laptop) devices are able to connect my WIFI.
When I boot my laptop with Windows 8, it's able to connect my WIFI.
When I boot same laptop with Ubuntu it's trying to connect sometime and says like: "Disconnected from Wifi" Also with Ubuntu my laptop can connect other WIFI modems.
I think there is problem with Ubuntu and my modem Huawei HG552E.
1- I've changed almost every mode of WIFI setting in modem interface.
2- Also tried to disable password protection for WIFI.
3- With fresh installation with 15.04 also does not working.
4- I'm able to connect internet with wired cable.
I'm not able to connect WIFI with 3 different Ubuntu please help :( http://prntscr.com/73c2a1