This is the first time i am using thinlic server and client ( version 4.14.0). i have already installed server on my gcp instance and client on my local laptop. while attempting to connect to server using private key, i was getting above error “The connection was dropped by the server before the session could be established”.
i have verified the status of vsmagent service, tlwebaccess, vsmserver . all are active
Could someone here help me in this ?
Heya @velraj
Hm. Not really sure about that one, I haven’t stumbled upon it before 
Could you share your ThinLinc client log from when this happens? The log is available in ~/.thinlinc/tlclient.log on Linux/Mac clients, and for Windows that will be %TMP%/tlclient.log
Perhaps the server journal can give some clues as well? journalctl /usr/sbin/sshd
Regards,
Martin
thanks for looking into it . i solved by updating AllowTcpForwarding to yes . Now thinklinc client is working fine