I did what you told me, I had to reclaim the server, I was asked to confirm the 6 libraries I already had before, but now the servers appears unavailable.
I restarted the server once, and still have the same problem.
I removed the new xml file which was created, renamed the Preferences.xml.old
file in Preferences.xml and I have my libraries back.
I wonder if I have a cookies problem here finally, because it works right now, but if I close FireFox, the next time I’ll have to connect, it’ll fail. It’s a strange issue
What I did in my NAS network configuration was to configure it with DHCP, with an IP reservation on my router, because I often had the gateway disapeared, with no reasons, after some days.
Since my network configuration is stable, the problem seems to be solved !