pfSense

Found perhaps an associated issue with this bug.
Once the clients are added to the whitelist on Captive Portal, Firewall logs will no longer show the IP assigned to the client (via GUI). This can be reproduced. Add an client to the bypass list , restart CP. Check firewall logs and now the clients assigned IP will no longer show up.

Thanks for the feedback Jim.
Would you happen to have the changelog just for Captive Portal?

Its going to take me sometime to spin up another pf with a devel snapshot.

Here are a list of specific issues in Captive Portal on 23.01 (most are already resolved):

https://redmine.pfsense.org/projects/pfsense/issues?utf8=%E2%9C%93&set_filter=1&sort=id%3Adesc&f%5B%5D=cf_6&op%5Bcf_6%5D=%3D&v%5Bcf_6%5D%5B%5D=23.01&f%5B%5D=category_id&op%5Bcategory_id%5D=%3D&v%5Bcategory_id%5D%5B%5D=10&f%5B%5D=&c%5B%5D=tracker&c%5B%5D=category&c%5B%5D=status&c%5B%5D=priority&c%5B%5D=subject&c%5B%5D=assigned_to&c%5B%5D=updated_on&group_by=&t%5B%5D=

But there are other changes in the underlying OS/source and base system that are possibly related. The only real way to know for certain is to try it out in your environment.

I was not able to reproduce this issue on 23.01. After the MAC was added in Captive Portal, the client was able to access the internet. This is likely related to one of the number of issues resolved since 22.05 - or potentially there's an issue with your environment given your report of https://redmine.pfsense.org/issues/13742.