Lag connection in online poker rooms

Why is it every time I’m ahead in a tournament I get intermittent lag that throws me out of hands and periodically crashes my App? It’s annoying and costly.

This also happens to me sometimes. I try not to be nervous.

If you are talking not in generally but for today, pokerstars got DDos attacked by hackers and its down.

If your on acr, and it’s not during ddos attacks, it can be your WiFi. Many times however, it’s due to their lacking servers.