I just try to open Electrum, server set to automatic and it sync in less then 10 second. No doubt it's about DDoS attack which lasts for some time on Electrum servers, therefore the only way to sync is to try on as many servers from the list.

To manually change the server click on bottom right icon (red dot), then click on Server tab -> Right click on any server -> Use as server -> Close -> Wait for sync.

In my case, the server that is currently running is : electrum.taborsky.cz

Did you download from the original site? (https://electrum.org/#download)
Are you using a standard wallet with standard amount of bitcoin addresses?