Protocol error (ERR_CONNECTION_REFUSED)
4.5
The browser cannot connect to a website because the connection was actively rejected.
Symptoms
- Browser error page
- Site won't load
- Works on other devices
Possible Causes
- Firewall blocking
- Proxy settings
- Browser cache
Step-by-Step Fix
1
Check Proxy Settings
Ensure "Automatically detect settings" is ON and no manual proxy is set.
2
Disable Firewall Temporarily
Rule out your security software as the cause.
3
Clear Browser Cache
Remove temporary files that might be pointing to an old IP.
When to See a Technician
This error often means the website server is up but the specific "port" (like 80 or 443) is blocked.
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