Issues executing tests while on VPN

I'm having issues when I try to run a lists of tests remotely; and also when I open a project. All of my tests are housed on server B instead of being housed on my local machine. It's this way so the tests can be accessed by others if needed. I have to VPN into my work network in order to access my projects. When I open TS and select a project, TS shows a message that it's not responding. If I leave it alone, it eventually opens the project. Also, once I get into the project and create a small test list to execute on server B, it completely bogs down and I get a message that it's not responding. This also happens when I try to run one test locally. What am I doing wrong? Do others have it set up this way? Should I have this set up a different way? Any feedback would be greatly appreciated!