Hey All -
Just updated from El Capitan to Sierra 10.12.6 and I'm experiencing a login issue with the App Store. I can log into iCloud, but I cannot login to the AppStore or iMessage.
I've tried * Removing all network interfaces, removing all preference files. Re-adding and confirming that Ethernet is on en0 and wifi is on en1 * Updating SMBIOS through Clover by generating new serial numbers * I also went through An iDiot's Guide To iMessage
AppStore gives me the following error: An unexpected error occurred while signing in. Your device or computer could not be verified. Contact support for assistance.
Really stuck here, any help/pointers would be appreciated.
Computer specs if it helps: * Intel Core i7-2600K Processor 3.4GHz 8 MB Cache Socket LGA1155 (Sandy Bridge) * Gigabyte LGA 1155 Intel Z68 Motherboard GA-Z68MX-UD2H-B3 * XFX ATI Radeon HD6870 1 GB - HD687AZNFC * Corsair Vengeance Blu 16 GB PC3-12800 160mHz DDR3
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