Get it quite often. Usually nothing.
As I have said before
1. If you really start to struggle with speeds CLEAR YOUR TEMPORARY INTERNET FILES
2. Now if it continues to struggle over time CARRY OUT 1 ABOVE THEN TURN YOUR DEVICE OFF COMPLETELY WAIT A MINUTE OR TWO THEN TURN ON AGAIN
3. If your game freezes TRY ANOTHER DEVICE FIRST TO MAKE SURE IT IS NOT YOUR FIRST DEVICE assuming your internet is ok.
4. If second device also frozen and internet ok THEN CONTACT ANOTHER IN GAME PLAYER. IF IT IS FROZEN FOR THEM REPORT THE BUG. Do this though the Diplomacy icon.
5. CoW often clogs around 1600 UTC/GMT - all the Americans waking up I assume.
