Is NPTEL Down?
Yes, we are detecting problems with NPTEL that began 1 minute ago.
Service returned HTTP 0. Error: cURL error 60: SSL: no alternative certificate subject name matches target host name 'www.nptel.ac.in' (see https://curl.se/libcurl/c/libcurl-errors.html) for https://www.nptel.ac.in
Real-time Incident Detection Chart
Spikes in user reports (line) mapped against status page traffic baseline (bars) detect outages via Z-score analysis.
Community Status Activity
Recent user-submitted feedback and problems reported.
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Troubleshooting NPTEL Issues
If you're experiencing issues with NPTEL, try these troubleshooting steps:
Basic Steps
- Refresh the page & clear browser cache: NPTEL course pages and video lectures can sometimes load stale content. Press Ctrl + F5 (Windows) or Cmd + Shift + R (Mac) to force a fresh reload.
- Check your internet connection: NPTEL streams high-definition video lectures and hosts large PDF notes. Run a speed test; a stable 5 Mbps connection is generally recommended for smooth playback.
- Test a different browser or device: NPTEL’s portal (including the SWAYAM platform integration) sometimes conflicts with specific browser extensions. Try Chrome, Firefox, or Edge, or switch to your phone’s browser.
- Disable VPN or proxy: NPTEL frequently blocks IP ranges used by VPNs to prevent automated access. Temporarily turn off your VPN and see if course materials load.
- Verify the time and date: NPTEL exam scheduling and assignment submission rely on your device’s clock. Ensure your system time is synced automatically (Settings > Date & Time).
Intermediate Steps
- Clear browser storage for video streaming: NPTEL lectures use adaptive bitrate streaming. If playback stalls or buffers infinitely, go to browser settings > Privacy > Clear site data for nptel.ac.in and swayam.gov.in—this resets the video player’s saved state.
- Check your login session expiry: NPTEL’s session timeout is short (about 20 minutes of inactivity). If you see “Authentication Failed” when downloading assignments, log out completely and log back in using your registered email.
- Flush DNS & reset network stack: Open command prompt (Run as Administrator) and type: ipconfig /flushdns then netsh int ip reset. Restart your router. This resolves cached regional routing issues specifically with NPTEL’s CDN nodes.
- If PDF notes show blank pages: NPTEL uses JavaScript-based PDF viewers. Open the download link in a new tab and use the built-in browser PDF viewer instead of third-party plugins. Also, ensure you’re not using old Internet Explorer compatibility mode.
Still facing issues? If the problem persists after these checks, the NPTEL service may be experiencing an outage. Please click the “Report Outage” button on this Is It Down Bro? status page to let us know—your report helps us confirm the problem and track its duration.
Troubleshooting & FAQs
Recent NPTEL Outages
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Status Methodology
Outage Detection: We check website availability using network scanners every minute. If a response fails, we perform automated retries.
Community Reporting: Spikes in user reports are analyzed via standard deviations (Z-score). Z-scores above 2.0 indicate a high likelihood of a localized or major outage.
Geolocating: Crowdsourced feedback tracks country origins using public IP-API geo databases to map the scope of outages.