Q: AppStore error (NSURLErrorDomain error -1012.)
Since a while, App Store only shows updates of applications, but no OS updates or system patches. When "Updates" is pressed, a popup shows AppStore error (NSURLErrorDomain error -1012.).
MacBook Pro, OS X Yosemite (10.10.1)
Posted on Mar 10, 2015 11:58 AM
ROOT CAUSE (in my case):
The System Root Certificate that issued Apple´s server certificates for https://swcheck.apple.com and others, named "VeriSign Class 3 Public Primary Certification Authority - G5", was manually set to "Always trust", by myself I guess
SOLUTION:
Set the trust level of "VeriSign Class 3 Public Primary Certification Authority - G5" back to "System Standards".
HOW TO REPEAT:
- Open Keychain Tool, select "System Roots" and "Certificates".
- Search for "VeriSign Class 3 Public Primary Certification Authority - G5".
- Check if its icon is OK, i.e. not a blue plus or a red cross, but as all others.
- If not, you have my root cause, so double click it and change trust level to "System Standard".
You may be prompted for admin credentials, make sure you know what you´re doing. (Lessons learned.)
Posted on Mar 10, 2015 12:12 PM