App Store hangs on Checking for Updates - 10.10.3
On my MBP 15 Retina the App Store either displays a blank, grey page or if I can get to the Updates it just keeps showing the spinner and never completes the task.
This morning I delayed the Restart after 10.10.4 downloaded (10.10.3 installed) while I finished a task. Restarted manually and the update did NOT install (still running 10.10.3). Now the App Store won't find the update at all.
I tried creating a new Admin account, deleting prefs for the App Store, nothing worked so far.
I know the servers are probably getting hammered, but an iMac also on my desk saw the update and installed without issue. One computer fine, the other not.
Any suggestions?