Works fine for me, try changing your 5Ghz channels.I don't know if Lenovo checks this forum, but my biggest issue is the fact that the tablet doesn't connect to my 5ghz ssid/wifi/network name. I really want the tablet to receive higher internet speeds, but alas I've tried resetting and it doesn't fix it. I'm highly confident its a firmware issue, because I've tried resetting (it works in the beginning, then functionality goes away after an hour and never works again) and updated to the latest version, but alas nothing has fixed it. I know the tablet works with some Chinese wifi channels, but I wish they can just update the firmware, so it can work with USA wifi channels. I'm pretty sure I bought the international version, so maybe a firmware update can fix its compatibility. If you read this Lenovo, then thank you for reading our concerns.
Lenovo has their own forums that caters to international versions, not the Chinese ones.