X550e looses connection to the internet

[RealStar]

Dear all,

I'm new to Watchguard (X550e) and hope you guys could help me

I managed to get the firewall working (did upgrade, made wan/lan/optional configs, added some rules)

Everything ok, except:

After a few minutes its stops responding => no external network??

After a reboot everything runs again, I start a ping to '

http://www.google.com'

and after a while, it stops and everybody looses connection to the internet.

Someone any idea?

From then I keep getting in the System Manager:

...changed from interface eth0 to interface eth1
...changed from interface eth1 to interface eth0
...

PS there is nothing wrong with the internet connection, at this moment they are using another firewall.

Thanks guys!

 

[joopdog]

Check the logs.

Make sure your "Any-Trusted" is getting out to the "External".

Check and see how your "HTTP-Proxy" is setup.

Your "HTTP-Proxy" should be setup as the following:
From: Any-Trusted
To: Any-External

Check the proxy action.

Let me know if this helps.