We just switched from a TZ180 IPsec vpn to an NSA 2400 ssl vpn and our remote users are getting a windows alert when uploading certain files to the server. The Local Device Name Is Already In Use. Then the user can no longer browse the server. See below and attached image. The netextender logs show no errors or events but for the user to gain access again to the server they must disconnect and reconnect via netextender and they are good to go until they attempt to upload something again. Just for a reference, we had a fresh install machine that was just reformatted and we they get the same Windows Alert.
We have tried contacting Sonicwall & a private company that setup the NSA 2400 and they can't figure it out. We have tried remapping drives, accessing via shortcuts only, everything we can think of and we can't figured it out. Any suggestions out there?