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# How to solve NSPOSIXErrorDomain:40
- URL: https://ostreff.info/how-to-solve-nsposixerrordomain-40-2/
- Published: 2022-07-02T17:33:52.000Z
- Updated: 2022-07-02T17:33:52.000Z
- Author: Jordan Ostreff
- Tags: #Apple

I’m so frustrated that I need to use another browser because Safari randomly pops up this error whenever he wants, just on the MBP ( on iPhone and iPad works just fine )...  
  
It’s firewall related problem. Disable firewall and you’re good.