network adaptor

I have had this issue for a number of years now. Every time I try to connect to the wifi network at my in-law's home, my Surface Pro 4 will say it Can't connect to this network. Eventually, after 10-60 minutes, It will randomly connect and be fine for a while, but often disconnects after an hour...

It worked fine after install however I picked up my SP3 pro for the first time in a while and I can no longer connect to Wifi. "Windows did not detect any networking hardware" ??? On Device Manager : Network Adaptors the Marvell AVASTAR AC controller is "working properly" Driver version...