Me too sometimes my connection suddenly lost and after I refreshed I lost the game because I was out of time.
lost a perfect match due to connection error

I was winning hard... +7.8, and suddenly I lost the connection. My Internet worked, it was not an issue on my end, but man this is so damn annoying. I was so proud of that game.
This is happening too often! By far not the first time I lose a match cus of something like this
The site has been experiencing very high loads.
https://www.chess.com/blog/CHESScom/chess-is-booming-and-our-servers-are-struggling
If you lost games due to that, you can contact support with links to the game(s) and they should be able to provide a rating refund.
https://support.chess.com/collection/343-contact-us
I was winning hard... +7.8, and suddenly I lost the connection. My Internet worked, it was not an issue on my end, but man this is so damn annoying. I was so proud of that game.
This is happening too often! By far not the first time I lose a match cus of something like this