I currently have an old HD2 which has CAT6 LTE modems and I am only using it as a Firewall for my office, Router on a stick kind a thing.
The problem I have encountered is that WAN port looses layer 1 and 2. The router seems to ¨disconnect the port¨ and connect it back again after 6-10 seconds.
I haven´t had a problem before with the other router, so I think the problem is on the HD2.
Checked the autonegotiation settings for speed and communication, changed it to manual, but it still does it.
Any of you had some kind of problem like this?