Hi I do not have good news with testing. Something was wrong probably in code of version 2.0 Something wrong probably in code of version 2.1, same as above version ERROR 104 on RCVING on server side /disconnected WT 3.11.0 Tunnel: V.1.7 WtTunnelSrv: V.2.1 Server running on Red Hat Enterprise GCC: GCC (GNU) 3.4.6-3 73, Zygi SP5ELA SN0HQ team