Unable to register CE 6.0 terminal Omnii XT15

Hello, My terminal Omnii XT15 Windows CE 6.0 was connected to my soti mobicontrol server but this XT15 failed, it has been sent to maintenance and now it's back with a new motherboard. I tried to install Soti mobicontrol agent as it was before the reparation but unfortunatly the communication beetween the terminal and soti server was not ok (the terminal was still present in the soti console but not "on"). So i deleted the terminal registred in Soti (i also deleted the certificat), removed the agent from the terminal, created a new deployment agent, installed it on the terminal but still no communication beetween terminal and soti server. I checked the "Deploymenet server" logs, and it seems there are error regarding a certificat : 2018-07-27 13:56:29,027 (0x00001f7c) [INFO] CWinLogFile::WriteAllLog() New connection entry, index=19, name=*, host=172.18.203.32, sock=3744, port=49421 2018-07-27 13:56:29,167 (0x00001e0c) [WARN] CWinLogFile::WriteAllLog() SSL: Error 8009030E querying remote certificate 2018-07-27 13:56:29,168 (0x00001e0c) [INFO] CWinLogFile::WriteAllLog() SSL: Connection info: Protocol=00000040, Exch=0000A400 (1024), Hash=00008004, Cipher=00006603 (168) 2018-07-27 13:56:29,445 (0x00001e0c) [ERROR] CWinLogFile::WriteAllLog() ConnThread: index=19 (): 0 byte received, socket closed anyone to help me to properly register the terminal please ? Thanks in advance