Sync API Keys 500 error

Document ID : KB000111860
Last Modified Date : 22/08/2018
Show Technical Document Details
Sync API Keys fails with the following error.
[LRSGatewayPlugin general] -- <Failure message="Unable to process response" code="500"/>

Catalina.out errors:
DEBUG (http-nio-37080-exec-12:) - [SyncAPIKeysHandler general] -- response: 
[Fatal Error] :-1:-1: Premature end of file.
[time] com.l7tech.extension.util.XmlUtil buildXmlDoc
WARNING: Premature end of file.
org.xml.sax.SAXParseException; Premature end of file.
API Portal 3.5
By default the gateway will only accept a POST of 2621440 bytes. The API Keys sync is trying to POST 5156935 bytes. 
User can temporarily remove the restriction by updating the 8443 port's configuration as indicated in the attached screenshot.Capture

Connect Gateway from Policy Manager using port 9443 and then goto Tasks -> Transports -> Listen Ports, from the Properties of 8443 port and from Advanced tab do the above change displayed in the screen-shot.