Attached the logs. Some more debug driver logs as below.
tar@tar-desktop:~/.indi/logs/2018-07-18/indi_synscan_telescope$ cat indi_synscan_telescope_02:45:30.log
INFO 33.666106 sec : Session log file /home/tar/.indi/logs/2018-07-18/indi_synscan_telescope/indi_synscan_telescope_02:45:30.log
INFO 41.036448 sec : Connecting to 192.168.4.2@11882 ...
ERROR 41.106719 sec : Failed to connect to mount 192.168.4.2@11882: Connection refused.
INFO 42.286021 sec : Connecting to 192.168.4.2@11882 ...
ERROR 42.335596 sec : Failed to connect to mount 192.168.4.2@11882: Connection refused.
tar@tar-desktop:~/.indi/logs/2018-07-18/indi_synscan_telescope$
tar@tar-desktop:~/.indi/logs/2018-07-18/indi_synscan_telescope$ cat indi_synscan_telescope_02:34:37.log
INFO 8.353158 sec : Session log file /home/tar/.indi/logs/2018-07-18/indi_synscan_telescope/indi_synscan_telescope_02:34:37.log
INFO 35.142521 sec : Connecting to 192.168.4.2@11882 ...
ERROR 35.156510 sec : Failed to connect to mount 192.168.4.2@11882: Connection refused.
INFO 39.312678 sec : Connecting to 192.168.4.2@11882 ...
ERROR 39.320977 sec : Failed to connect to mount 192.168.4.2@11882: Connection refused.
INFO 50.982383 sec : Connecting to 192.168.4.2@11881 ...
DEBUG 50.982764 sec : Connection successful, attempting handshake...
INFO 51.002177 sec : Synscan Mount not responding
DEBUG 51.002343 sec : Handshake failed.
INFO 52.882429 sec : Connecting to 192.168.4.2@11881 ...
DEBUG 52.882732 sec : Connection successful, attempting handshake...
INFO 52.909325 sec : Synscan Mount not responding
DEBUG 52.909613 sec : Handshake failed.
Ping the mount
tar@tar-desktop:~$ ping 192.168.4.1
PING 192.168.4.1 (192.168.4.1) 56(84) bytes of data.
64 bytes from 192.168.4.1: icmp_seq=1 ttl=255 time=4.35 ms
64 bytes from 192.168.4.1: icmp_seq=2 ttl=255 time=4.05 ms
64 bytes from 192.168.4.1: icmp_seq=3 ttl=255 time=5.84 ms
^C
--- 192.168.4.1 ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2002ms
rtt min/avg/max/mdev = 4.059/4.755/5.847/0.781 ms
tar@tar-desktop:~$ ping 192.168.4.2
PING 192.168.4.2 (192.168.4.2) 56(84) bytes of data.
64 bytes from 192.168.4.2: icmp_seq=1 ttl=64 time=15.7 ms
64 bytes from 192.168.4.2: icmp_seq=2 ttl=64 time=43.7 ms
64 bytes from 192.168.4.2: icmp_seq=3 ttl=64 time=23.5 ms
^C
--- 192.168.4.2 ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2003ms
rtt min/avg/max/mdev = 15.713/27.699/43.796/11.828 ms
tar@tar-desktop:~$ nc -v 192.168.4.2 11880
nc: connect to 192.168.4.2 port 11880 (tcp) failed: Connection refused
tar@tar-desktop:~$ nc -v 192.168.4.2 11882
nc: connect to 192.168.4.2 port 11882 (tcp) failed: Connection refused
tar@tar-desktop:~$ nc -v 192.168.4.2 11881
nc: connect to 192.168.4.2 port 11881 (tcp) failed: Connection refused
tar@tar-desktop:~$ nc -v -u 192.168.4.1 11882
tar@tar-desktop:~$ nc -v -u 192.168.4.2 11882
tar@tar-desktop:~$ nc -v -u 192.168.4.2 11881
Connection to 192.168.4.2 11881 port [udp/*] succeeded!
Unknown,XUnknown,XUnknown,XUnknown,XUnknown,X
Unknown,
^C