As somebody who did IT support - the last two seem perfectly normal to me:
Computer “forgot passwords” - obviosly the man is using different browser than regular and it ain’t filling in his passwords. Maybee diferent profile in the same browser? Is he using the same account as usual?
Wind blowing away wi-fi. She is likely connected to the internet through a point-2-point wifi connection and there may be a tree or something along the way messing not wifi signal in her house but her connectivity to the outside. I’d refer her to her ISP, just instruct her to formulate the question a bit better.