#Next.js dev server stops immediately when opening localhost in browser (no errors)

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gloomy phoenix
#

Hi everyone, I’m stuck with a strange local dev issue in a Next.js 16.0.7 project.
When I run the dev server, I see:

next dev

▲ Next.js 16.0.7 (Turbopack)

✓ Starting...
✓ Ready in 983ms

Everything looks normal, but as soon as I open http://localhost:3000 in Chrome, the Next.js dev server immediately stops. No errors, no logs, the process just exits.

Environment:

  • Windows 11
  • Next.js 16.0.7 (Turbopack)
  • Chrome browser
  • Astrill VPN (Stealth mode)

Tried:

  • Deleting .next folder
  • Switching browsers
  • Changing dev port
  • Excluding browser from Astrill app filter
  • Running without extensions
  • Reinstalling node_modules

Still the same: opening the page kills the server.

Has anyone experienced this or know how to debug why the Next dev server shuts down with no error? Any help appreciated!

ornate helmBOT
#
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gloomy phoenix
#

I found the issue. It seems to be related to the specific version of Next.js I was using. After downgrading from Next.js 16.0.7 to 15.5.7, the dev server stopped crashing and everything worked normally again.

If anyone runs into a case where the Next.js 16 dev server closes immediately when opening localhost, try using Next 15. That fixed it for me.

Marking this as solved.