Loosing connection with FG40F behind Transfer network and Vodafone router - any ideas?

[RolandBaumgaertner72]

Hi,

we have a small office connected with fiber from Vodafone. Their router has 192.168.1.1 and we have a transfer network to our FG WAN 192.168.1.254. With this kind of router we were not able to connect the fiber directly to the FG so we had to configure it like that.

Now we have problems for months now. Every other week for 2-3 days the users loose connection to the internet like 4-5 times a day. Later we check and everything seems normal. Vodafone sent like 4-5 times a technician to test and he connects the laptop to the router and also everything is fine, so we are doing nothing to check the situation.

Any siggestions we could do or test?

Thanks!

[Anthony_E]

Hello Roland,

Thank you for using the Community Forum. I will seek to get you an answer or help. We will reply to this thread with an update as soon as possible.

Thanks,

[Anthony_E]

Hello Roland,

We are still looking for someone to help you.

We will come back to you ASAP.

Thanks,

[funkylicious]

hi,

i would suggest setting up a link monitor on the FGT to monitor internet reachability from the device.

https://community.fortinet.com/t5/FortiGate/Technical-Tip-Link-Monitor-Explained/ta-p/197504 

on the FGT do you see any logs that could give a hint of why internet connection is lost and how does it manifest from the users point of view ?