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.
The password one is also when they're on the wrong site and now they've just typed all their passwords and account names into microsoftoffice365.scammer.ru
I worked at a software developer, occasionally doing support. Had a call from a customer following up on a ticket, I looked at the record and the salty dude who took the original call had written:
Caller asked me to tell him where he saved his file. I told him "well if you can tell me where I parked my car this morning, I might be able to help you."
Quality wasn't a big thing with our software, the senior developer was a stoner who was off his head most of the time, others were either clueless or too busy on side hustles to give a fuck. Amazingly we developed engineering software that was used by amongst others, the atomic weapons establishment in the UK and Buckingham Palace. Happy days.