Reported in: https://forum.matomo.org/t/make-oops-there-was-a-problem-during-the-request-dismissible/35390 - I've also experienced this a few times.

In version 3.13.0 the error message “Oops… there was a problem during the request. …” always appears on top of the Dashboard after I woke up my laptop. I assume the reason is that the Wifi connection needs more time to reestablish.

It would be great if I could close that message, since everything (including Ajax like Visits in Real-Time) actually works without problem. Alternatively, the message could simply disappear after a few seconds.

Reproduce on all websites dashboard

• Open https://demo.matomo.org/index.php?module=MultiSites&action=index&idSite=3&period=day&date=yesterday
• While all websites is dashboard is loading, click on the "Dashboard" link
• Got this:
  

Reproduce in Dashboard

I'm not actually sure how to reproduce it consistently but I often get this:

ideas

• When the Real-time ajax requests fail, maybe we could diplay the error message after 3-4 or 5 consecutive fails, rather than immediately?
• or hide the error notification that may have been displayed for the real-time widgets, whenever a successful real-time widget ajax request comes next
• or maybe there's a better solution?