I lost my Wifi connection, diagnostic kept saying wifi was not turned on but when I toggled it on, it just kept shutting off.
After 6 frustrating hours, this was the solution, turn off tablet, then hold down power on button for 2 minutes, after 2 minutes, plug in charger as if to charge and then power on the tablet. Problem was solved. Admittedly I have to reconnect to my home wifi with user name and password, but that was the simple part.
Problem was caused by an issue with overcharging the battery. Apparently when the tablet is left connect to charger after it has completed charging a static charge builds up in the battery and losing wifi was the result.
Kudo to Dell support for the help with this. Unfortunately I wasted so much time before i got through due to the fact that I kept blaming it on other Microsoft issues that had been posted here. Try this solution first before you try other fixes. this was so easy. Wish there had been something in the tablet instructions telling of this charging issue.
The cause of the problem sounds suspicious to me.
I've never heard of a "static charge" on the battery, and the charging circuit is designed to stop charging once the battery is fully charged.
Whenever I charge mine, I leave it connected until I want to make it "portable" again. That could be a day later. No WI-FI problems.
Glad you got it working anyway.
the point of the post was to help others with their problem and fix it, not whether the reasoning from Dell was valid or not, being non technical I can't say one way or another. Just don't waste time on the reasoning of the cause before you at least try this. Makes sense huh