We got FIL a chromebook figuring it was the easy way to go. You might find that the issues are more user error than technical, which means this will happen again if they don't understand what to not do, or what to do differently. For example, FIL insisted on powering off the CB every night when you just need to shut it. Or when zooming he'd want to start hitting stuff that didn't apply, and mess up the session, stuff like that. Luckily he has a savvy neighbor who can resolve most problems.
If he can't figure it out locally, then, yeah a weekend visit might be in order, in which you watch everything they do, ask them what they turn off and on and don't, and fix bad habits vs. connections...