Codm keeps stucking at checking for update

I started playing codm in bluestacks pc everything was working fine for atleast one week but then when i open codm it says checking for updates goes to 100% 5 times ten says error i also checked my modem and net speed it was fine from one week i am trying to fix this problem searching at YouTube gogle and many more sites if it would be like this then what can i do maybe i will leave playing it
So please anyone who has encountered this problem and solved it please share your experience

download problems can be caused by port settings google it and checkem or firewalls and security settings