Dot Won't Link To SiriusXm Streaming

[stringbob]

Trying to set up Siriusxm Skill. When I attempt to link the account, I get an error 400 Invalid redirect_uri. I have no clue what's going on. Anyone know?

[stringbob]

A little more detail: No problem logging directly into Siriusxm from the PC, or even the phone. However, when I try from within the Alexa app, I Enable Skill, and then select "Link Account". It never gets to the sign in screen. Instead, it opens an error screen with "400 - Invalid redirect_uri.
I get the same error when I attempt to "Link Account" from the Skills page on the internet (PC)

[stringbob]

I was finally able to "Link Account" when I tried with my tablet. Very Strange!