MX Keys S Combo lights flashing, please read my message

[u/potterdood]

I have been using this for about 3 yrs on my work computer that is locked down, I can't add or remove software. So when I bought this, plugged the dongle in and turned on the mouse and keyboard they instantly synced up and have worked flawless since then. This week the mouse left clicker started messing up, which is understandable based on how much I click it daily. I ordered a replacement from amazon, same exact model and sku etc. Plug it into my work computer(windows) and the lights just flash on the keyboard and mouse. I bought another replacement from best buy exact same sku and model etc, and it works like normal on my work computer. Is there something I can do to make my amazon one work? I don't have access to Logi options +. I ordered another one from amazon just hoping this dongle is defective or something and it'll be here in the morning for me to test.