@Susan321 Same thing happened my neighbor here in Mexico last season. Guests who had booked for a month also left after a few days because the internet wasn't good enough for them to work. She upgraded to new service which works much better than the Telcel connection she had. I'm also about to get that service.
If you don't have any other choices for more reliable internet, you just have to make it really clear in your ad that if guests are reliant on constant, high speed internet, yours isn't the place to book.
I've been closed to bookings for a year and a half because I have a home-share listing and not willing to risk Covid, but I rented successfully for over 3 years with cell-based, metered, expensive internet, because there weren't any other options. I was just really clear in my ad that I didn't have internet capabilities for those who need to work online, stream, upload large files, etc. Fine for checking your email, surfing the web, but not for someone working from home, Zoom calls, etc.
There are plenty of guests who don't want to be online during their holidays, so you just have to market towards those types. Some of my guests did work online and found it adequate for their needs, as your past guests have. And some said they were happy the internet was limited- that they spend way too much time online at home, that it's really addictive, and they enjoyed being forced to do other things- if they were going to sit in front of a screen, they might as well have stayed home.
Another thing that travelers have to realize is that you can't have it all- you can't have a rental in a quaint little town in Mexico and expect the same 1st world infrastructure you had in Vancouver or S.F. It doesn't matter how good the internet is, if the electricity goes out in a rainstorm, which it does a lot, nothing is going to work.
