@A2day 

Hi, welcome to the community.

The expected LED sequence should be:

Solid yellow -> flashing yellow -> flashing blue -> solid blue -> solid green

In the normal setup process, a red LED is not supposed to be seen.

For Deco XE75, the units in the same kit are pre-configured: When the main unit is set up successfully, the satellite units can join into the mesh automatically.

So the LED sequence would be a little bit different:

Solid yellow -> flashing yellow -> flashing blue ----> Solid green.

Are you still having issue about the configuration?

If yes, our hotline/ live chat support would love to provide further assistance.

Thank you very much and best regards.