[Solved]If Wan cable is disconnected and connected, pfSense needs to be rebooted

[kjgas]

Hi,

I have a problem with my pfSense 2.3.2, Pentium Dual Core.
If I disconnect my Wan cable and put it back in, I don't get a stable link.
I get my IP adress for a second (Interfaces on my Dashboard). Then it goes red - then green with 0.0.0.0 - then I get my IP adress. In a second it starts all over again with this behavior. It never stops.

My gateway status say Online/Offline all the time.

If I reboot pfSense the link comes up stable and shows Online the whole time.

What can cause this?

Edit:
I tried to disable Gateway Monitoring, but still the same.
If I try with another router it works ok, so it is something with pfSense

Edit:
Turned out to be hardwarefailure on ethernet card. Replaced at tested ok