R1soft server is unable to connect to Agent server, and giving following error message:
Failed to connect to (hostname) after 120000 milliseconds
The R1soft backup server IP has been blocked at Agent server firewall or if you have CSF firewall installed, then its blocked by CSF firewall.
Remove R1soft server IP from blocked / deny IP list. It may be temporary blocked or listed in csf.deny, Also add R1soft server IP in csf.allow as trusted IP.
After that you will no more get the error.