Ok, I'm not sure if this belongs here, since this thread seems more directed at wifi problems that have been persistent from right out of the box. Nevertheless, the sticky says "Post all your wifi issues here", so here I go.
I think my wireless controller just died!
I came home from work today and woke my Surface Pro 3 (i7, 256gig). Hmm, no internet, that's strange. I have had absolutely zero wifi issues out of this machine since day one. I fired it up the first time, it found my network, I entered my wifi password, and it's been absolutely golden ever since. I've only had it about a month, so I think Microsoft had all of the early problems ironed out by the time I got mine. I clicked on the network symbol in the task bar, and out pops the Networks bar stating "No networks found." I toggle the wifi off, then on again - no change. Then airplane mode on and off. No change.
Rick
Hi....
Just went through the same thing. Bought my i5/256G/8G SP3 on Thanksgiving day and loved it. Didn't even know there was a wi-fi problem until...
Last Sunday. Worked fine (as usual). Later in the day get back on and notice the tiles aren't updating/no mail/internet etc. Did all you did and noticed a couple more things. In device manager, Bluetooth was gone and I had an exclamation point in USB Controllers with a message something like "unknown device". Also noticed that the double-click on the pen didn't work anymore. So I noticed 3 new problems I hadn't had before. Oh, I also went somewhere else and saw a "no networking hardware" type message... but it just told me that the Marvell Wireless Controller was working properly at the same time. Whhaaattt???
Called MS Support Monday night and the tech had me do everything I had already done - I understand this and of course go along - I want this thing fixed! Last resort he has me go to recovery and has me go to "Recovery - Remove Everything and Re-install Windows". I think why not, I NEED wireless working on this thing. Anyways, no change, all symptoms the same. He said it could be replaced and I took it to my local MS store and exchanged it. Bought the original from MS's online store but had no problems with the local store. So everything's fine again.
Things I notice different in Device Manager now... No Exclamation Points anywhere. Bluetooth's back AND there's 4 items under it... including Marvell Radio Adapter and Surface Pen. Network Adapters has 3 items under it. The original SP3 only showed the Marvell Controller here. But my point is, it just suddenly died and all these things seemed related to one another.
Gotta give props to MS Support. He spent about an hour on the phone with me and I had no problem with the exchange at the local store. FYI, I did the January Firmware update, but don't believe it caused the problem because my problem began 3-4 days after that.
Anyways, I was looking all over the internet to see if anyone else had the same problem I had, but they were all just a bit different... limited connectivity, and doing different things got it working again, etc. even though it was/is a PITA. Your problem mimicked my situation exactly! It just plain out simply died! Did you ever resolve your problem?
Joe S.