Windows help
Firewall blocks program | Windows help
App cannot use network.
App cannot use network. This guide walks you through common fixes step by step. If it does not work or you prefer professional help, Leftclick AG in the Basel region is here for you.
Step by step
- 1
Check rule
Windows Firewall allow app through allowed apps.
- 2
Profile
Set rule for private and public if needed.
- 3
Third party
Check corporate firewall separately.
- 4
IT
On business PCs do not loosen firewall blindly.
When DIY is not enough
If these steps do not help, you are unsure, or several devices in your business are affected, Leftclick AG can take over troubleshooting. We work via remote support or on-site in the Basel region and find the root cause without guesswork.
FAQ
- Is the initial consultation free?
- We briefly clarify the issue by phone and honestly tell you whether a DIY fix is enough or professional help makes sense.
- Do you support business PCs too?
- Yes. We support SMEs in Basel-Stadt and Basel-Land with managed IT, support and security from a single team.