MBA El Capitan: System Preferences-Networks won't load
Hi,
since a while I experience that the system preferences on my Macbook Air (El Capitan) load very slowly and won't load at all once I'm in the 'Networks' panel. In addition, I see that, if the networks panel loads (which happens rarely) all non-standard setups are gone (such as Ethernet by USB).
How can this be solved?
Thanks,
User0