I feel your pain, whilst not quite as bad I've had a similar coouple of weeks.
What should have been a quick setup for the cameras took about 2 weeks to get them paired properly and working as the NVR lost it's password when I powered it down for a couple of days, and then it tooke me about a week (including several days of fiddling before contacting HiKvision for a reset), then the camera activated originally on the NVR wouldn't pair up again after being disconnected - my suspicion is it was still using the original password but didn't mind until it had to re-pair, that took a day.
Now my plan to connect the garage camera up over a home plug seems to be running into issues, it seems that my homeplug connection has dropped from 30mb/s to none with one adaptor set, and about 2-3 with another.
Although after an afternoon spent back and forth it looks like the issue may be down to the mains adaptor for the TP-link POE injector, if I turn it off the connection comes back (it's not the POE injector itself as the issue remains when I have the PSU on but not connected).
Then Plex stopped working, after an hour I found a post that suggested that if you tell it to update in Chrome you can run into issues as apparently Chrome truncates some long file names.
Sure enough downloading the update in another browser and running it worked.
Why the **** Plex didn't give an error message when it updated I don't know, all I knew was that it was starting to load, the icon appearing, then disappearing (and the logs were not much help).
And my computer suddenly started having a really nasty mains hum on the mic input about 2am last night (before the plex update), which I have no idea why, I haven't changed any hardware recently, one headset doesn't appear to have anything passing from the mic through (just the hum), and another one has the signal from the mic but with the hum.
I think I'm going to sit in a barn somewhere with a book for a few hours, tech seems to want to drive me nuts at the moment..