Dayton, Tennessee

← Back to student.bryan.edu overview

Fix a “400 Bad Request” Error

If student.bryan.edu shows a plain error page instead of the sign-in screen, it’s almost always a browser cookie problem — and it’s quick to fix.

Browser error page reading 400 Bad Request, Request Header Or Cookie Too Large, nginx

This is what the error looks like — a plain white page reading “400 Bad Request.”

The fix: clear cookies for student.bryan.edu (and the related Microsoft/Bryan sign-in domains) in your browser. The steps below take about a minute in any browser.

Fastest check: open student.bryan.edu in a private/incognito window first. If it loads fine there, the fix below will solve it permanently in your regular window too.

Google Chrome

  1. Click the three dots (⋮) in the top-right corner, then Settings.
  2. Go to Privacy and security → Clear browsing data.
  3. Set the time range to All time.
  4. Check Cookies and other site data and Cached images and files.
  5. Click Clear data, then reload student.bryan.edu.

Microsoft Edge

  1. Click the three dots (⋯) in the top-right corner, then Settings.
  2. Go to Privacy, search, and services → Clear browsing data → Choose what to clear.
  3. Set the time range to All time.
  4. Check Cookies and other site data and Cached images and files.
  5. Click Clear now, then reload student.bryan.edu.

Mozilla Firefox

  1. Click the menu button (☰) in the top-right corner, then Settings.
  2. Go to Privacy & Security and scroll to Cookies and Site Data.
  3. Click Clear Data…, check both boxes, and click Clear.
  4. Reload student.bryan.edu.

Safari (Mac)

  1. Open Safari → Settings (or Preferences), then the Privacy tab.
  2. Click Manage Website Data…
  3. Search for bryan.edu, select the results, and click Remove, then Done.
  4. Reload student.bryan.edu.

Still seeing the error?

Contact the IT Help Desk: helpdesk@bryan.edu or 423-775-7333. See also the full login walkthrough.