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The original was posted on /r/sysadmin by /u/InternationalMark474 on 2024-01-24 02:39:53+00:00.
I have been tasked with setting up the Barracuda Client-to-Site Network Access Client (Barracuda VPN Client) on some laptops. When the VPN is connected, the device can access everything (internal web apps, RDP) in the network but shares... At least for a certain amount of time. For no rhyme or reason and for no estimated time, the shares will start working. Once the shares start working, it doesn't matter who logs into the device and the Barracuda VPN client, it will stay working. If you delete the Barracuda VPN profile (say to increase security protocols after testing) you have to do the same waiting period. It seems that once the profile has "established" then everything works.
For notes
- Pings work both ways (server to endpoint, vice versa) when the shares do not work
- Event viewer shows nothing outstanding. General SMB client errors that say can't connect until it can.
- Windows firewall was disabled for testing purposes on the endpoints.
- Network firewall shows traffic between server and endpoint on port 445.
- Wireshark shows RST, ACK when not working, nothing determinable.
- I have been in contact with Barracuda Support for over a month with zero solutions. To the point where they went dark and got the email gateway professional services involved.
Can anyone please give me some type of answer that will save my sanity on this issue? Please.