Cisco ASA 5516 W/ FP, Complete loss of connectivity.

Hey Everyone,

I'm having a reoccurring problem with one of my ASA's, it decides to block all traffic in and out of the network. I have opened a case with Cisco, but wanted to see if you guys have any pointers?

The logs show no obvious signs of failure.

Detail?

Like I said all traffic is blocked. There is no indicator that I could find on the ASA telling my something had gone wrong or why it was blocking the traffic.

Debug?

• Unplugging the Main ISP connection
• Tried failing over to another ISP
• ICMP and Packet traces are all blocked during the Blocking
• Connection to the device itself is still available, both SSH and ASDM
• Both are Running version 9.8.2.20, Uptime 236 days.

What fixes it?

Failing over to the secondary device and then rebooting the Primary.