[6.7.0-rc6] Unable to check for new updates

I think you have a MAC.  That ._Pro.key is a metadata file created by it.  It is finding your key

 

Apr 13 02:34:02 MediaServer emhttpd: error: get_key_info, 564: Invalid argument (22): get_message: /boot/config/._Pro.key (-3)
Apr 13 02:34:02 MediaServer emhttpd: Pro key detected, GUID: 0..1 FILE: /boot/config/Pro.key

But I think that your actual problem may be a bug in rc6.  (I believe that the fix for the bug even though it was in the OS code prior to rc6 being released, didn't actually make it into the release version somehow)

 

From Update OS, reinstall the "Previous Version" and then reboot and check for updates.

On 4/15/2019 at 7:36 PM, Squid said:

But I think that your actual problem may be a bug in rc6.  (I believe that the fix for the bug even though it was in the OS code prior to rc6 being released, didn't actually make it into the release version somehow)

 

What's the bug?

16 minutes ago, limetech said:

What's the bug?

I *believe* that my PR #473 somehow went into RC6 without my adjustment #477, even though 477 was accepted prior to RC6 being released.

 

Either way, there's no problem with RC7+