@DinAjijic 

 

If your device is in router mode:

If the setting is Auto then change it to 1000 Mbps/full duplex (If it is set to 1000 Mbps then change it to Auto):

 

.

Then reboot the device and observe the result here :

 

 

If the device is in AP mode:

 

 

you can just observe the negotiation speed here:

 

 

In that case you can only re-plug the cable from both sides (router and modem) and observe if the negotiated speed is correct.

Thanks for your response. Tried all of that and still no luck.

What's the modem type ? Are you using A9's Internet port(blue port) or LAN port ? You can test with another cable or different modem port.

@Ivaylo 

 

Connected to a Fiberhome AN5506-02-F GPON modem.  Connected via the Blue port on the TP Link.

@Ivaylo 

 

OK. You helped me figure it out. The modem has 2 LAN ports.  Port 1 supports 1000Mbps while Port 2 only supports 100Mbps.  Finally.

 

Thanks