Corporate environments and some security products block program network access. It usually shows up as "no page loads at all" or "update check always fails" while chat apps work fine.
How to confirm it is blocked
If the browser cannot reach the network while other programs can, or updates always fail, disable the security product briefly to verify — then allow the browser in the firewall instead of leaving protection off.
- Browser offline while other apps work
- Update checks always fail
- Works once protection is disabled
- Interception visible in the security log
Adding an allow rule
Tick the browser under "allow an app through firewall" in Windows Firewall, or set it to allowed in the network control of your security product.
- Windows Firewall: allow an app through
- Security product: set network access to allowed
- Allow outbound 80 and 443
- In corporate environments contact the network administrator
Proxy environments
When a corporate network requires a proxy, the browser must use the system proxy or a manually configured address and port.
- Use system proxy settings
- Configure proxy address and port manually
- Supply credentials when authentication is required
- Add intranet addresses to proxy exceptions
FAQ
Is allowing the browser risky?
Allowing a legitimate program is routine. Allow only the browser main executable and keep real-time protection enabled.
How is this configured at scale?
The enterprise edition pushes proxy and network policies from the admin console, and firewall allow rules can be deployed via group policy.