When trying to connect a new device to a site, the “not a valid serial – pin combination” error appears
This message indicates there is a mismatch between the Serial and the pin number
A mismatch can happen due to:
- The serial and the pin number where not written in the right Case sensitive manner. Please check upper and lower case differences between the device sticker and what was entered in the text boxes.
- Leading and ending spaces. Make sure there are no leading spaces or spaces at the end of the Serial or the Pin numbers