u prolly use free proxy or so.
No, i dont use proxy.
I play only in my work and at home.
The problem can be with your work IP address. I experienced some problems as well when trying to claim some satoshi from the faucet from work.
It said that it was already claimed from my IP, even when I was alone at the office. I think it can be somehow connected with some security settings of the network.
It's a possibility.
But at the moment it does not work at work or at home.
I already restarted the moden from home, received a new IP, and remained locked.