After TrueNAS reboot: Jellyfin WebGUI can not be reached - DHCP - Network Issue

I am running TrueNAS-13.0-U6.1 with Radarr, Sonarr, Prowlarr and transmission.

Two weeks ago I shutdown my server because I was going on vacation, and after I rebooted yesterday jellyfin, radarr and prowlarr could not be reached via webGUI.

I first try to focus on fixing jellyfin but I think prowlarr and radarr have the same root cause.

The error I get from the TrueNAS WebGUI for jellyfin is:

DHCP - Network Issue: Command '['jexec', 'ioc-jellyfin', 'ifconfig', 'epair0b', 'inet']' returned non-zero exit status 1.

ifconfig of the jellyfin iocage does not look right either:

root@jellyfin:~ # ifconfig
lo0: flags=8008<LOOPBACK,MULTICAST> metric 0 mtu 16384
        options=680003<RXCSUM,TXCSUM,LINKSTATE,RXCSUM_IPV6,TXCSUM_IPV6>
        groups: lo
        nd6 options=21<PERFORMNUD,AUTO_LINKLOCAL>
pflog0: flags=0<> metric 0 mtu 33160
        groups: pflog

I checked my router and there is no static ip entry for jellyfin (192.168.1.172) unlike I did for transmission and sonarr (which work). But there is also no other device using this ip.

For prowlarr and radarr there is actually a static ip entry, and they also don’t work…

So now I am trying to solve the issue and try to prevent this from happening again in the future because at least 2 times a year I will be shutting down my server for some time and it would be nice if everything just keeps working when I reboot it again after some days/weeks.

There are actually updates available for all the plugins but I am afraid to update in this state since I am not sure if it will make things worse.

I hope someone can help me where I have to look to fix this…

I solved it… again the simplest solution… I just restarted all the jails…