This one I feel like I should be able to fix, but it has me stymied. We had a power outage a few days ago and it messed a lot of things up. Most were fixed by reboots, obviously.
The VPN though... No clients could connect. Sonicwall NSA 2600 being used as a VPN appliance. At first, I couldn't even get to it from the inside. I connected a laptop to its LAN port: traffic is OK, Laptop connected to the switch: no traffic! So clients could not authenticate because the LDAP is on the network side. I changed the D'Link switch's port settings to trunk, untagged, VLAN 192. Success! Now clients can authenticate!
Sonicwall sees the network now, clients see the Sonicwall and authenticate OK... but have no access to any LAN side devices. So they can connect, but it does them no good.
What did I miss?