Up until a week ago, I was able to connect my Samsung CCTV surveillance system to my Samsung phone remotely with Wiseview on the T-Mobile Network (4G). I can still connect with Wifi, but not with the T-Mobile 4G network. I have the most recent version of Wisenet, and I have changed nothing on my phone (s). So, I assume that the problem is with T-Mobile. Does anyone know how to resolve this issue?