I'm sorry for the inconvenience. This is a big challenge because it just takes one slight delay in response from NC to PT and that symbol will come up which indicates severed communication. The next version has changes that take extra steps to try and prevent this. If possible please make a support ticket with your log
https://support.pokertracker.com/support/ticket/2 so that I can see if there are some additional improvements possible. I think the new version will be published tomorrow but any log you submit will be greatly appreciated