Safari and other programmes do not connect to the internet, update servers etc.
The problem consists in the following things:
- Safari cannot load websites
- MS Office programmes do not connect to the internet (cannot update, cannot use OneDrive)
- No access to the AppStore, MacOS Update servers (new updates cannot be found)
These problems appear in my WIFI network and other (mostly private) networks, however the problem disappears when I start using the University VPN (Open VPN). When connecting to the VPN, the programmes can access the internet flawlessly.
What I already tried to solve the problem:
- Update MacOS to Big Sur 11.2.3
- Uninstall basically every third party programme besides Opera Browser, MS Office, Open VPN
- Erase Caches (Deleting files under "~/library/caches" in the Finder)
- Reset PRAM and SMC
MacBook Pro 13″, macOS 11.2
