@K.J.M  Hey,

1. What's the model number of your switch ?

2. " Link Aggregation Group ID outside the valid range. "

Is it possible for you to provide the screenshot ?

3. Does your switch work in standalone mode or controller mode ？

@Yannie 

Thanks for your response Yannie.

The model is: TP-Link TL-SG2210P (Un) V3.20
This has been updated to the latest version.
I believe it is in controller mode.

I go to work now. Can respond to it later. 

greetz,

Koen from The Netherlands.

@Yannie 

Omada software controller I have downloaded but not yet installed.
Surely it should also be possible through the interface which I approach via its http address, see photos.

@K.J.M Hi,

I believe the Group ID caused the issue, try to input any number from 1-8 in these two ports.（The two ports should be filled with the same number）

@Yannie 

Where can i create this id. Don't see a possibility like that.

@Yannie 

Sorry, it worked. 
See that after checking the ports it is possible to fill in number.

Thanks for your help!