Linux - Ubuntu 16.04       
I've recently installed a TCadmin remote server on my Linux server and I keep getting this error: The underlying connection was closed: An unexpected error occurred on a send.   
at first I thought it was mono because when I tested a master install I get this error : (-500) Client error (Error writing request: The authentication or decryption has failed.)     
 Mono JIT compiler version 4.4.0 (tarball Tue Jun 14 13:41:51 UTC 2016)
Copyright (C) 2002-2014 Novell, Inc, Xamarin Inc and Contributors. www.mono-project.com
   
I've done what the wiki has told me to do but still no fix.   
 Error writing request: The authentication or decryption has failed.
Fix this error by executing these commands. Replace 2.11.4 with the mono version that you are currently running.
/opt/mono-2.11.4/bin/mozroots --import --sync --quiet
/home/tcadmin/Monitor/monitor-service restart   
Would like to fix this soon.. Thanks heaps   
Ben   
If you require anything else please let me know