A Gateway has stopped checking in after deploying new settings to it. There is an Error seen in JobQueue_GetClientTasksQueue log file on the Gateway:
11:50.03.658 E Warning (Module:mgmtagnt.exe, Severity:0x03): TaskManagementTasks.dll Error received from Saas webservice: http://bshsm1.braincae.com:80/AgentTaskWs/AgentTaskWS.asmx
Error: "Server error: ' ' is an unexpected token. The expected token is ';'. Line 1, position 122."
This is caused by a Org Unit tied to the gateway containing and Ampersand. This is fixed in version 2016.2.1. If a customer is on a prior version they will need to remove the ampersand from the OU tied to this Gateway and re-deploy settings.