Please find this checklist on system configuration on your two computers
- SELinux disabled and rebooted
- Firewalls disabled
- Both machines have static IP address/hostnames defined and mentioned in /etc/hosts
The contents of /etc/hosts are correct on both the systems. - Passsword-less SSH is configured between those two systems and to themselves( hostbased passwordless authentication or ssh keybased authentications) for all the users
- Common home directory via NFS or Common Working directory which is readable writable and accessible by all the users across both the systems.
This might be related to
- Network resolutions issue , check /etc/hosts
- Check the pbs services are running systemctl status pbs
Hope this helps.