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I have an app that has been working fine for a couple of years now. Last week I found an issue that ONLY happen (so far) in T Mobile with an S9 phone. The call the TcpClient.Connect is stuck and timeout. Again this just happen in an S9 from T Mobile with the WIFI off, As soon as I connect the WIFI the issue does not happen.

This is my code:

var tcpc = new TcpClient();
tcpc.Connect( remoteAddress, remotePort);

I have tested both versions of Connect with the address (above) and using the IP:

if (System.Text.RegularExpressions.Regex.Match( remoteAddress , @"\d+\.\d+\.\d+\.\d+").Success)
   tcpc.Connect(IPAddress.Parse( remoteAddress ), remotePort);

In both cases it fails.

Any idea would be greatly appreciated.

Thanks, Naura

SHR
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Naura
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