Is CSIR Down?

If you're experiencing issues with CSIR, try these troubleshooting steps:

Basic Steps

• 1. Verify CSIR Portal Accessibility: First, confirm whether the issue is widespread by checking if the main CSIR website (csir.res.in) loads on your mobile data network instead of your office or home Wi-Fi. If it loads on one connection but not the other, the problem is likely with your local network.
• 2. Clear Browser Cache and Cookies: CSIR's research portals and data repositories often store heavy session data. Clear your browser's cache and cookies for all CSIR subdomains, then restart the browser completely before retrying.
• 3. Test on a Different Browser or Incognito Mode: Open the CSIR site in a private/incognito window (Ctrl+Shift+N or Cmd+Shift+N). If it works there, a browser extension or stored script is blocking the page. Disable ad-blockers or security extensions temporarily.
• 4. Flush DNS and Renew IP: On Windows, run ipconfig /flushdns in Command Prompt. On Mac or Linux, use sudo dscacheutil -flushcache. Then, restart your router to obtain a fresh IP address from your ISP.
• 5. Check for Scheduled Maintenance Windows: CSIR often performs routine updates on its institutional repositories (like NISCAIR or the main research portal) during early morning hours (IST). If the service is down between 2:00 AM and 6:00 AM IST, it may be scheduled downtime.

Intermediate Steps

• 6. Direct IP Connectivity Test (Bypass DNS): Use an online Ping tool or your command prompt to ping csir.res.in. If the IP resolves but the page times out, the issue is not your DNS but the server's firewall. Try accessing the site via its alternate HTTPS port (443) using a web proxy tool to see if the TCP handshake completes.
• 7. Evaluate SSL/TLS Certificate Status: CSIR's main site uses a valid SSL certificate. If your browser shows a "Your connection is not private" or "Certificate expired" warning, your system clock might be incorrect, or your ISP is intercepting traffic. Check your system date/time settings, and if correct, run a manual TLS test using openssl s_client -connect csir.res.in:443 on a Linux/macOS terminal to see the certificate chain.
• 8. Test the Specific CSIR Sub-Service: Many users report issues not with the main csir.res.in homepage, but with specific subdomains like www.csir.res.in, publications.csir.res.in, or the HR portal (hrmis.csir.res.in). The main site might be up, but a microservice or load balancer for a specific lab (like NCL, IITR, or CECRI) could be failing. Try accessing the direct IP of the subdomain if you know it, or check if only authenticated pages fail while public pages load fine.
• Important Service-Specific Tip: If you are an internal researcher, note that CSIR frequently requires a virtual private network (VPN) connection for accessing their intranet services. If the public site works but internal portals do not, your organizational VPN client may be outdated or the VPN gateway is rejecting your credentials. Try logging out of the VPN completely and re-authenticating.

Still not working? If you have completed all the steps above and the CSIR website, portal, or research repository is still inaccessible for you, please click the "Report Outage" button on this Is It Down Bro? status page. Your report helps us track the issue in real-time and notifies other users who might be facing the same connectivity challenges.