When the firebox drops the accounts, check to see if IKED is still running in the service watch tab in the processes section. If IKED is not running then that is your problem. This can be caused by upgrading firebox software major versions and reusing your same config file from earlier...
If your network traffic is high, then you may be running out of memory. When the firebox runs out of memory due to high traffic volume it stops routing traffic and requires a reboot.
You can check your load by looking on the status report page for load section.
If this is the problem then...
Check the firewall logs and see if you are being blocked. Also, check to make sure that you passed the IKED phase of negotiation correctly and the IKED process is running on the status report tab of your firewall. You will also need to either add a ANY service with incoming tab set to
from...
Couple of things you can do.
Add a service for FTP (If you have not already) On the outgoing tab add trusted->optional on the incoming tab add
the ip address of the server -> ip address of your pc. (if you want the server to be able to initiate talk to your pc.
One other thing you can do is...
If you have a unix system available, then you can go to
setup->logging select the syslog tab and enter the ip address if your unix system and then choose which syslog you need 0-7.
hope this helps.
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