IPSec VPN between Balance 20 and Cisco ASA 5505 keeps dropping


#1

Cisco logs report PFS not received
Peplink has PFS Group 2 configured
Tunnel has been stable for the last 30 days and suddenly started sporadically dropping

Looking for troubleshooting ideas, support, fixes, etc.

…and I’m experiencing horrible VOIP call quality.

Thanks


#2

You could try rebooting the tunnel if you haven’t done so already and the routers themselves. Otherwise if you could create a support ticket and include the Cisco Logs along with the IPsec configuration and enable remote assistance (Status tab) on the Balance 20 device, we can certainly take a closer look. Any recent changes at all to either end, such as configuration changes or firmware/software upgrades?

https://contact.peplink.com/secure/create-support-ticket.html

For VOIP I would recommend going to Network>QoS and set RTP/SIP traffic to High so that it is prioritized over regular data. Is the VOIP quality related at all to IPsec tunnel instability?