DFS / SMB unexptected network error on one site
Hi all,
I have the issue, that on one of our 10+ sites, users are getting the message "unexptected network error" while working on the network share, which is located in site A. The users are located in site F. Between the main site A and any other site B-Z, there is an IPSec Tunnel with Sophos XGS firewalls.
Also the main file server is located in site A with an DFS partner in site F.
While the error message on a client appears, the UNC-path is working fine. The network share is mounted via group policy. There is no time-based problem or old cable problem, as the problem is on many workplaces in site F.
Could this be an issue within communication between AD-Server and Fileserver on main site A? Both are on same network and work as virtual machines with windows server 2019 installed.
In AD sites and services, the site F is not configured, as there is no AD-server onsite.
In DFS-management, I see 4 sites, but the site F shows in the connections tab as "Unknown", whereas any other site shows with its city-name.
Also the replacement of firewalls to newer ones on any site, didn't fix the problem.
Could you please help in investigating this issue?
Thanks guys.