I’ve setup our Apple HomePod plenty of times. All previous setups have gone without any issues.
Tonight I had to reset our HomePod and set it up again because Siri was unresponsive. However, this time around the setup told me that I had an Incompatible WiFi, WTF!
After much Internet research I finally found the problem. I setup my WiFi via a Profile that I created and signed. This apparently was the issue. After I forget my network and rejoined by physically typing in my password, the setup went without any problems.
This may be an edge case. But for those who fell into the same rabbit hole, I hope this blog entry serves you well!