Hi
In the past 24 hours I noticed that my speed via my SXT LTE was a lot lower than usual.

I did a couple of test and it would appear the issue is the Ethernet port.

Tests.

1. BTest from LTE to external server - 50Mbps
2. Btest from HAP AC to SXT LTE - 6Mbps
3. Btest from client on LAN via HAP AC to external server - 6Mbps

I changed over the cable to see if that was the issue, but its not helped, anyone have any ideas what could be causing this ?

Thanks

First check if this is really the issue by clicking on the ethernet interfaces and scrolling down
to see what speed it has selected and if this interface went down/up at another time than you expect.

Auto negotiated at 100FD, logs dont show the port going up / down.