Changing IP of a device in distributed system

Hi !

We need to change the IP of some devices but when we try, the configuration page refresh with the old IP. We’ve tried with the script on the LibreNMS server we’ve got this error :

librenms@dnpf-svp-librenms:~$ ./renamehost.php 10.19.8.41 192.168.255.1
NOT renamed: Renaming of 10.19.8.41 failed

I think it’s because we use a distributed system with some pollers/a web and db server/a rrd server. Someone know if it is possible with this setup ? How ?

Thank’s in advance,
Florian