Yes. The same thing happened to me. I kept reading the prompts and eventually tried a factory reset which solved the problem.
Also one are of guidance in the setup process is a bit awkward. It starts out telling us to connect to a 2.4GHz SSID, but many people will not have those named separately...and the mobile device will likely be connected to 5GHZ. Technically, I think we just need to specify an SSID that includes the use of the 2.4 GHz radio.
The Pro 4 will only connect to a 2.4GHz WiFi regardless of a common SSID for both bands. There's no way for it to connect to a 5GHz WiFi. Your phone can generally use any connection available since the SSID and passphrase are the same. That said, some folks have found that a temporary creation of separate 2.4 and 5GHz SSIDs (with the 2.4GHz SSID being the one you want to keep) has helped - YMMV.
Other than the factory reset requirement, it worked fine for me with a combined SSID. I just found the language concerning when I started the setup. I wondered if I was going to have to set up a separate SSID for 2.4GHz. However, I did not need to do that. I’m not sure what less ambiguous language might look like. Perhaps “Connect to an SSID that is associated with a 2.4GHz radio (separate or combined)”. YMMV is certainly true. A lot of people have no clue what any of this means or may still have 5GHz on a separate SSID for some reason.
I’m not sure I even needed to connect to the correct SSID other than for automatically populating the SSID field on the setup. I was prompted for the SSID and password and I assume this phase of the setup was using Bluetooth. I have four SSIDs for different VLANs. I did connect to my CloudCam SSID for this, just to be certain.
Now if Arlo would just enable more of the functionality on these “your own Wi-Fi” versions of the camera rather than requiring us to use the WiFi from a base station, that would be very nice. I’d love to ditch the WiFi interference caused by all of my base stations.