I am using 3CX Ver. 7 and I'm having a problem after used it a period of time. There are two VOIP provider in my list, some days ago 3CX will automatically connect to the VOIP provider and show "Registered", but now even I reboot the system or 3CX System, it does not automatically register with the VOIP provider, when I manually click "refresh registration" in "VOIP Providers", the system log shows "22:37:16.015 Unknown system [CFGManager] tries to connect!" what does it mean? how do i solve the problem, now i cannot use that VOIP provider as the system said me not yet register.... thanks Code: 22:37:12.108|.\TuSelector.cxx(70)|Trace5|Resip|::ResipLogger:Stats message 22:37:12.108|.\StatisticsMessage.cxx(152)|Trace5|Resip|::ResipLogger:RESIP:TRANSACTION TU summary: 0 TRANSPORT 0 TRANSACTION 0 CLIENTTX 0 SERVERTX 1 TIMERS 1 Transaction summary: reqi 1277 reqo 0 rspi 0 rspo 927 Details: INVi 0/S0/F0 INVo 0/S0/F0 ACKi 0 ACKo 0 BYEi 0/S0/F0 BYEo 0/S0/F0 CANi 0/S0/F0 CANo 0/S0/F0 MSGi 0/S0/F0 MSGo 0/S0/F0 OPTi 0/S0/F0 OPTo 0/S0/F0 REGi 1277/S621/F306 REGo 0/S0/F0 PUBi 0/S0/F0 PUBo 0/S0/F0 SUBi 0/S0/F0 SUBo 0/S0/F0 NOTi 0/S0/F0 NOTo 0/S0/F0 Retransmissions: INVx 0 BYEx 0 CANx 0 MSGx 0 OPTx 0 REGx 0 finx 0 nonx 0 PUBx 0 SUBx 0 NOTx 0 22:37:16.015|.\SLServer.cpp(824)|Log5||MyConnectionListener::ConnectListener:SL: connected lamsoft-server:0/CFGManager at [lamsoft-server:0]/CFGManager 22:37:16.015|.\SLServer.cpp(870)|Error1||??:Unknown system [CFGManager] tries to connect!