What steps should I take if I encounter problems connecting my custom domain to my Blogger blog, like issues with propagation?

If you encounter problems connecting your domain, first double-check that all the DNS records (A records and CNAME) are entered correctly. Propagation time (the time it takes for changes to update across the internet) can take up to 48 hours, so be patient. If problems persist, contact your domain registrar's support for assistance, as DNS configuration is managed on their end. Verify you have no accidental typos in the setup and that the domain is correctly pointing to Blogger.