This doesn’t seem to be a very common problem, given that when I searched for it I only found a single result on Google, but in case someone else out there runs into the same issue, I thought I’d write it up so they can find it.

I tried to register a Wacom Intuos drawing tablet. The way you do this is you open the Wacom software and click on the registration banner, which then opens your default web browser to the registration page on Wacom’s website, pre-filled with a serial number and some authorization token. If you’re already logged into a Wacom account, it should just register it immediately. Or you can create an account first.

The problem: I got a banner at the top with the error, “Profile ID Missing.” I went back to the Wacom Desktop Center, which popped up the registration banner again. Clicked again. Same problem.

The only reference I found when searching for wacom register "Profile ID Missing" was a German-language review review on the Amazon.de listing for an Intuos tablet. “Was zum Teufel ist eine Profile-ID?” They solved it by uninstalling and reinstalling the Wacom software, and for whatever reason, the registration link worked that time.

Before I got to that point, I tried something I didn’t think would work: I clicked in the URL bar on Firefox and hit Enter, causing it to reload the page. (I forget whether I’d already tried hitting the reload button.) Weirdly enough, it worked, and it registered the tablet. Finally!