Symptoms
You run two or more SNA Servers in a SNA Subdomain. If the Primary configuration server is shut down, the IP-DLC Link Service on a secondary server doesn't start.
Resolution
The fix that resolves this problem is included in the following cumulative updates for Host Integration Server:
Cumulative Update 2 for Host Integration Server 2016
Cumulative Update 4 for Host Integration Server 2013
Status
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
References
Learn about the terminology Microsoft uses to describe software updates.