[▲ Vercel Community](/) · [Categories](/categories) · [Latest](/latest) · [Top](/top) · [Live](/live) [Help](/c/help/9) # Vercel custom subdomain showing invalid configuration with Xneelo DNS 41 views · 2 likes · 10 posts Byronsinnema (@byronsinnema) · 2026-02-24 I’m trying to connect the subdomain `app.bookmeevents.co.za` to my project `bookme-two.vercel.app`. ## Details - **DNS Provider:** Xneelo - **Record Type:** `CNAME` - **Host:** `app` - **Value:** `9533185fffcf6aea.vercel-dns-017.com` DNS propagation is confirmed globally via [dnschecker.org](http://dnschecker.org), but Vercel keeps showing the following error: > **Error: Invalid Configuration** Can you please verify? Swarnava Sengupta (@swarnava) · 2026-02-24 While DNS propagation may show the CNAME record exists, your domain is currently resolving to **196.22.142.217** (Xneelo’s servers) instead of Vercel’s infrastructure. This explains the “Invalid Configuration” error. Here’s what’s likely happening: **There’s probably a conflicting A record** for `app.bookmeevents.co.za` in your Xneelo DNS settings. When both an A record and CNAME exist for the same hostname, the A record typically takes precedence. To fix this: 1. **Log into your Xneelo DNS management panel** 2. **Check for an existing A record** with the host `app` - if one exists, delete it 3. **Verify your CNAME record** is correctly set: * Host: `app` * Value: `cname.vercel-dns.com` (this is the recommended value for subdomains) 4. **Wait a few minutes** for the changes to take effect, then refresh your domain settings in Vercel Alternatively, if you prefer using an A record instead of CNAME, you can: * Delete the CNAME record * Create an A record with Host: `app` and Value: `76.76.21.21` After making these changes, Vercel should be able to verify your domain and issue an SSL certificate automatically. Byronsinnema (@byronsinnema) · 2026-02-24 I inserted these exact settings in Xneelo dns management, and have had no success. I dont have any other records with “app” in my settings. So not sure what it could be…  Swarnava Sengupta (@swarnava) · 2026-02-24 Can you double check the settings?  Looks like instead of `9533185fffcf6aea.vercel-dns-017.com`, it’s returning `9533185fffcf6aea.vercel-dns-017.com.bookmeevents.co.za` https://dnschecker.org/#CNAME/app.bookmeevents.co.za Byronsinnema (@byronsinnema) · 2026-02-24  Swarnava Sengupta (@swarnava) · 2026-02-24 Check if it has beyong any character after [vercel-dns-017.com](https://vercel-dns-017.com)… As you can see the DNS is purely returning by your service and there is nothing much we can do until it’s pointing to our server Byronsinnema (@byronsinnema) · 2026-02-24 only character after .com is the fullstop “.” Nothing else Byronsinnema (@byronsinnema) · 2026-02-24  Byronsinnema (@byronsinnema) · 2026-02-24 Any suggestions? I really need to get this working Swarnava Sengupta (@swarnava) · 2026-02-24 · ♥ 2 You need to check with Xneelo support to find out why the DNS isn’t propagating. Unfortunately, we don’t have much control on this.
