Found that the wireless network card is crossed. What's going on?
Background:
The computer was not turned off last night, because I was downloading something, and when I came here the next day, I found that the wireless network card was crossed. What's going on?
Solution:
1 make sure that the wireless switch on the computer is turned on
2 press Fn+f5 to take a look at the wireless status and find that it is turned off and solved after it is turned on. (my computer is ThinkPad T430)