L2TP connection attempt failed

You may perform troubleshooting steps below.

  1. Check your laptop public IP address. You can user WhatIsMyIP to identify that information.
  2. Start the Network Capture at http://<LAN IP>/cgi-bin/MANGA/support.cgi.
  3. Initiate the L2TP/IPSec until you see the connection attempt fails.
  4. Stop and download the Network Capture.
  5. Extract and open the WAN pcap file with Wireshark.
  6. Filter the pcap file with your public IP obtain from (1) to confirm whether L2TP/IPSec connection hits the WAN interface.

If the L2TP/IPSec connection hits the WAN interface, please open ticket and turn on Remote Assistance for us to take a closer look. Else, the packet is dropped somewhere before reaching WAN interface of Balance 305. You may need to check with your ISP.

2 Likes