MR Interface

[JFer]

The data rate between AP and SW / 1 is capped at 100 Mbps and operating at half duplex

The switch port is configured in auto mode. I have set it to 100 full duplex and 1000 full duplex, but the message still appears. I’m not sure if the LAN port of the AP needs to be configured

[ww]

Put both on auto.

Make sure the cable is good and fully plugged in on both sides

Try another switch port

[VivekT]

Hi,

What is switch and Ap model ?

Did you check the cable ? Is it ok ?

Yes,you need to check the port settings on AP local status page too.

[Mloraditch]

As others have said checking the cabling as that's the likely culprit usually, if you have Meraki switches you can use this tool: https://documentation.meraki.com/MS/Monitoring_and_Reporting/Using_the_Cable_Test_Live_tool