Package: unknown Version: 4.1.2.2 Howdy, When I connect from Mac client to ubuntu server, I get a “connection timeout” 30 seconds after “connection start.” Other people can connect to my server. Error message is: Loop: WARNING! Overriding auxiliary X11 port with new value '1'. Warning: Overriding auxiliary X11 port with new value '1'. Info: Connecting to remote host 'localhost:36652'. Info: Connected to remote proxy on FD#11. Info: Connection with remote proxy completed. Loop: WARNING! Unrecognized session type 'unix-kde-depth_32'. Assuming agent session. Warning: Unrecognized session type 'unix-kde-depth_32'. Assuming agent session. Info: Using ADSL link parameters 1408/24/1/0. Info: Using cache parameters 4/4096KB/8192KB/8192KB. Info: Using pack method '16m-jpeg-9' with session 'unix-kde-depth_32'. Info: Using ZLIB data compression 1/1/32. Info: Using ZLIB stream compression 4/4. Info: No suitable cache file found. Info: Forwarding X11 connections to display '/private/tmp/com.apple.launchd.E12k8P0IX6/org.xquartz:0'. Info: Forwarding auxiliary X11 connections to display '/private/tmp/com.apple.launchd.E12k8P0IX6/org.xquartz:0'. Session: Session started at 'Fri Mar 19 09:38:16 2021'. Connection timeout, abortingSession: Terminating session at 'Fri Mar 19 09:38:46 2021'. Info: Waiting the cleanup timeout to complete. Session: Session terminated at 'Fri Mar 19 09:38:47 2021'. On the server, in /var/log/messages, I get what appears to be a success report: Mar 19 09:38:16 hpnsw4371 /usr/bin/x2gostartagent: successfully started X2Go Agent session with ID charletr-50-1616171893_stDMATE_dp32 I have a tcpdump (is in an ssh tunnel, to a little vague) which shows client sending dup packet not quite, but almost 30 seconds into session attempt. 116 33.763841 15.116.49.166 16.99.147.244 SSHv2 108 Server: [TCP Spurious Retransmission] , Encrypted packet (len=64) 117 33.763941 16.99.147.244 15.116.49.166 TCP 56 [TCP Dup ACK 114#1] 64138 → 22 [ACK] Seq=3239 Ack=5027 Win=262144 Len=0 SLE=4963 SRE=5027 Client = MacOS 10.15.7 (Catalina…and due to corp policy, I cannot upgrade); x2go 4.1.2.2 with qt 4.8.7 with xquartz 2.7.11 with xorg 1.18.4 Server : x2goversion : 1.0.2.4 : 0.0.1.6 : 4.1.0.3 : 4.1.0.3 : 4.1.0.3 : 4.1.0.3 : 4.1.0.3 : 3.5.99.22 : 4.1.0.3