Backup restoration faulty including static DHCP entries

[PhoenixRider]

Hello,

this is my second try to solve the problem. In german section i doesn't got any replys.

I switched from IPFire to OPNsense about any weeks ago and have not yet repented it. I had to reinstall the box a few times before I got everything going as it is now. But when I was in a good position, I pulled a backup of the config.

When reinstalling OPNsense (after another setting error and no longer accessible WebGUI) and reloading the backup, the OPNsense was no longer accessible after the backup and the internet connection was also not available. After reinstalling OPNsense, by chance I only restored the fixed DHCP entries from the backup. After rebooting the same game, the web interface was no longer accessible and the internet connection was also not available.

Then I reinstalled OPNsense and only restored the firewall rules, aliases, etc. Restart-> everything was fine. Accordingly, there must be an error when restoring the fixed DHCP entries. The error occurred with OPNsense version 21.7.6. I use the following interfaces:

OPNsense with a WAN, LAN and WLAN interface. DHCP is active on the LAN and WLAN interface, but had partially assigned fixed IP addresses by the DHCP server. If further information is required, please let me know, but I no longer have any logs. But maybe someone can confirm this issue or maybe even explain what went wrong in this case. So far I have kept my hands off the fixed DHCP entries, but would like to use the feature, save with the backup and restore it without problems if necessary.

Best regards

[opnfwb]

Unfortunately without logs it will be difficult to determine the root cause. Is it possible that some of the DHCP entries conflicted with interface IPs already assigned to OPNsense? Were you able to plug in a keyboard and monitor to the OPNsense box and see if there were any errors displayed on screen? That may be the only way to troubleshoot if you want to try restoring the config to verify if the system becomes unreachable again.