Leaderboard

Update from USA Airtel latches to AT&T in USA. AT&T has discontinued 2G w.e.f. January 2017 - only 3G & 4G available Airtel IR Pack 2,999 works fine in USA [10 days validity; unlimited incoming calls/SMS; 250min local/India calling; 100 SMS per day] T-mobile 2G/3G/4G is available. Airtel also latches to T-mobile 2G [when AT&T isn't available], but service is patchy! Moto G5 Plus [India model] doesn't seem to support WiFi calling. however, it is compatible to AT&T 3G & 4G

You can try cleaning the terminals of your WiFi card. Open the bottom of your laptop. Disconnect antenna wires & Take out the WiFi Card. Clean the terminals using Any soft rubber eraser. Re-insert the card, connect the Antenna wires & reboot. Download the latest drivers if required. Should work like before.