Make sure that you have an account that allows simultaneous connections, and you have not reached the limit of connections yet.

FYI, All accounts when they are created default to 1 connection at a time. We can increase that easily. Simply submit a support ticket and we will up your limit according to the guidelines below:

Current KMS Account Limits:
Basic Account - 2 devices
Gold Account - 2 devices
Roommate Account - 4 devices
Roommate Plus Account - 4 devices


Please, make sure that you never give out your login information to anyone, as that will count against the maximum number of connections.

FYI, you can use as many computers as you want to connect, they just cannot all be online at the same time.

If you have any other questions, please submit a support ticket.