Thursday, June 16, 2016

Synology DS1515+ / Router RT1900ac troubleshooting

 

So I’ve got Synology DS1515+ to replace the Lenovo drive since late 2015. And the server has been running fine. Here are a few tips for things to work correctly:

1. VPN L2TP connection requires manual registry editing:

Ports Required:

  • IPSec – UPD 500
  • IPSec NAT Traversal – UDP 4500
  • L2TP – UDP 1701

Fix on Windows clients – http://support.microsoft.com/kb/926179

  • For Win7 and Win8 Machines
    • HKEY_LOCAL_MACHINE –> SYSTEM -> CurrentControlSet –> Services –> PolicyAgent
    • New DWORD (32-bit) – AssumeUDPEncapsulationContextOnSendRule
    • Set the Value Data to 2