Hi Harry
I’ve had that on a few NethServers in the past, but not in recent times. But still NethServer 7x, not the older 6x.
I run networks for my 25-30 clients, all use Proxmox since about 3 years now. Before some were on VMWare, some on bare metal.
I never used the LDAP as AccountProvider, it was always the Samba-AD.
When the error cropped up, what helped was doing a config restore (latest ok version before the error) and a reboot. The error disappeared afterwards and didn’t reappear.
Maybe this can help in your (different) case.
As to the LDAP-URI:
If I’m not mistaken, those funky charachters are the replacements also used in http for the equal sign “=” and a comma. These symbols can’t be used in a URL directly, and need to be replaced by using the above…
My 2 cents
Andy