通过浏览器URL发起GET请求时遭遇ERR_SSL_PROTOCOL_ERROR错误求助

Hey there, let’s tackle that frustrating ERR_SSL_PROTOCOL_ERROR you’re getting when trying to access adbc.com. This error pops up when your browser and the website’s server can’t negotiate a secure SSL/TLS connection—here are actionable fixes to try, ordered from easiest to more involved:

• Double-check your URL
  It sounds simple, but typos happen. Make sure you’re not mixing up http:// and https://—if adbc.com doesn’t support HTTPS, forcing it with https:// will trigger this error. Also verify the domain is spelled correctly (no extra letters or typos in "adbc.com").

• Clear browser cache and SSL state
  Stale cached data or broken SSL state can mess up connections:

  • For most browsers, go to Settings → Privacy & Security → Clear Browsing Data. Select "Cached images and files" and "Cookies and other site data," then clear them.
  • On Windows, open Internet Options → Content tab → Clear SSL State to reset stored SSL certificates.

• Verify your system’s date and time
  SSL certificates rely on accurate system time to validate. If your device’s date/time is way off (years or months), your browser will reject the server’s certificate as invalid, causing this protocol error. Fix your system clock and try again.

• Disable browser extensions temporarily
  Security extensions, VPNs, or ad blockers can interfere with SSL handshake. Disable all extensions, restart your browser, and see if you can access the site. If it works, re-enable extensions one by one to find the culprit.

• Check your local hosts file
  Malware or misconfigurations might have modified your hosts file to redirect adbc.com to an invalid server:

  • Windows: Open C:\Windows\System32\drivers\etc\hosts with Notepad (run as admin) and look for any lines with "adbc.com"—delete them if they don’t point to the correct IP.
  • Mac/Linux: Open /etc/hosts in a text editor (use sudo for permission) and check for suspicious entries.

• Test on a different network
  Your home router or workplace network might have SSL inspection enabled (like a firewall or proxy) that’s breaking the connection. Try switching to a mobile hotspot or a different Wi-Fi network to rule this out.

• Check the server’s SSL configuration
  If all the above steps fail, the issue is likely on adbc.com’s end. You can run this command in your terminal to diagnose the server’s SSL setup:

  openssl s_client -connect adbc.com:443
  

  Look for errors like expired certificates, unsupported TLS versions, or incomplete certificate chains in the output. If you see these, the site’s admin needs to fix their server config.

Start with the first few steps—they’re quick wins and often resolve the issue. Let me know if any of these get you back up and running!

内容的提问来源于stack exchange，提问作者JEJC_JACALK