“Error during connection to \\ \SMS_Site (1326).”

I am seeing the following errors in Sender.log on my ConfigMgr 2012 Central Administration Site:

Waiting for new/rescheduled send requests, Maximum Sleep Time = 60 minutes
There is no existing connection, Win32 error = 1326
There is no existing connection, Win32 error = 1326
There is no existing connection, Win32 error = 1326
Error during connection to <a href="http://\\”>\\ \SMS_Site (1326).
Operation is retryable.
Cannot connect to server at remote site , won’t try send requests going to site for an hour or until there are no active send requests.
Could not establish connection.
Attempt to connect failed.

Why aren’t my SUPs receiving any new Software Updates after I’ve expanded my Standalone Primary?

I’ve expanded my Standalone Primary into a new Hierarchy but ever since doing so my SUPs at the now new Child Primary aren’t receiving any new Software Updates.

Why aren’t my Clients receiving new/ updated Client Settings after I’ve expanded my Standalone Primary?

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