Hello,
Welcome to the Community and thanks for posting!
This sounds like an issue related to GuardedID, a security program that may be installed on the computer you are using to control the computers in your account or the computer you are controlling. To resolve this issue, please follow the instructions outlined in the Knowledge Base article linked below on both computers.
http://lmine.ws/eJzbgF
Regards,
Tramaine David
User Services Rep
LogMeIn, Inc.