Recently in a training we encountered the below issue. I guess this will only occur in cases like a training room. Essentials the error message we get when we try to connect to PoweBI Cloud site is
“Connection error Your connection has been lost. Please check your network connection settings. As soon as your connection is restored, you can continue using Power BI.”
As mentioned in the link below the solution is actually fairly simple even if the error message doesn’t point to the correct root cause. In the training room the timezone of the system was set to Canada while the training was being conducted in Pune. The difference in time zone I guess results in the SSL certificate to the PowerBI site to become invalid and as a result we get the error message. Simpley change the time zone and time to the correct value and you should be able to connect to the site without issues.