I installed Electrum (from .org website  ) and after installation I selected private key import, I typed my private key and I clicked on "Next" button, but Balance is "0", history is empty, only in "Addresses" tab I see one address and when i right-click on it and select "Private key" I see my private key.

Server status icon in bottom right corner is green and I tried to connect to different servers but I still don't see my coins.

Is it possible to manually synchronize my wallet with network to see balance and history?