Site-To-Site Tunnel Drops Connection

[alexoos]

I have a site to site IPSEC tunnel between two offices. The connection works fine but about 5 times a day the network connections drops for about a minute and then resumes suddenly.  Any suggestions?

[fastcon68]

What version of PF-Sense are you using? 
What are you connecting to at the other end of the tunnel? 
What type of internet connection do you have at both ends?
Do you static ip's at both ends?

This will get the conversation started.

[brianmac64]

I have the same (or similar) issue.  pfSense1.2.2–-> Fortigate FG-500A cluster.  Tunnels come up fine, but when the P2 key lifetime ends, the tunnels go down.  I checked both configs and they are equal.  Any ideas?

[brianmac64]

@brianmac64:

I have the same (or similar) issue.  pfSense1.2.2–-> Fortigate FG-500A cluster.  Tunnels come up fine, but when the P2 key lifetime ends, the tunnels go down.  I checked both configs and they are equal.  Any ideas?

Forgot to mention that I am running MR6 P3 on the FGs and that disabling and re-enabling IPSEC on the pfSense solves the issue.  Should I maybe schedule a CRON job that does that in conjunction with the P2 expire?