My Ubuntu 14.04 LTS can view but cannot connect to home 5Ghz wifi. 2.5Ghz wifi works well. Wifi card should be good since the Windows 10 on the same machine works with both 5G and 2.5G
Network controller: Realtek Semiconductor Co., Ltd. RTL8812AE 802.11ac PCIe Wireless Network Adapter
Wireless script is here
Is this a driver issue? or somehow the router is rejecting Ubuntu?
Any fix or insight is appreciated.