It seems teamviewer will auto disconnect when viting citi.com on either the host or remote computer. I tested this with multiple browswer and multiple host and remote computers, citi.com will disconnect initially quite quickly, and continue to disconnect while citi.com is open on either of the computers.
I am running the latest version avaialbe as of this post on both computers (13.2.5287). I observed initial disconnects when visiting citi on the remote, but it seems to occur even when visiting on the host machine. I tested on more computers after that point and it seems to be a repeatable bug. If you have any guidence or setting changes I should make, please let me know.