This usually isn’t actually a DNS problem, even though it looks like one at first.

ERR_CONNECTION_REFUSED after upgrading to Hobby almost always means your domain isn’t properly connected to your deployed project anymore on the hosting side.

What I would do:

First, go into your hosting dashboard and remove the custom domain (leibsystems.com), then add it again from scratch. After that, redeploy the project. This alone fixes it in most cases because plan upgrades sometimes reset the internal domain linking.

Next, double-check your DNS in Namecheap. Make sure there aren’t any leftover or conflicting records like old A records, URL redirects, or multiple entries pointing to different places. You should only have the exact records your hosting provider tells you to use.

Also, try opening your default project URL (like the *.vercel.app or *.up.railway.app version). If that works but your custom domain doesn’t, then the issue is definitely just the domain not being reattached properly.

After re-adding everything, give it a few minutes for SSL and edge routing to settle, then try again.

In most cases, just removing and re-adding the domain fixes it completely.

I also recommend routing through Cloudflare.

Hello stephy91,

the site is actually up and working fine, it's just dns propagation your isp hasn't updated yet after the plan change. try clearing your dns cache or try testing on mobile data, if it loads there then that confirms it. it should resolve on its own within 24-72 hours