Symptoms

Under MID server record in the "MID server issues" tab you see the following error:

"Could not decrypt file discovery whitelist after sync"

Cause

Cause 1:

This happens when the MID server tries to decrypt files that are trying to be synced from the instance before it had a chance to be validated. 

Cause 2:

The issue is caused by the fact that the instance will return nothing if the plugin "com.snc.discovery.file_based_discovery" doesn't have a license and the code on the mid server doesn't handle the error correctly, so that the error message is misleading. 

Please take a look at the sys_web_service script GetMIDInfo. When MID server starts, it will send a SOAP request to instance asking for updating file discovery whitelist. The request will be handled by the following function in GetMIDInfo: 

function updateFileDiscoveryWhitelist() { 
var havelicense = sn_lef.GlideEntitlement.hasBetaLicenseForApp('com.snc.discovery.file_based_discovery'); 
if (!havelicense) { 
response.midInfo = null; 
return; 
} 

var agent = request.agent; 
var doc = MIDServerInfoAccessor.updateFileDiscoveryWhitelist(agent); 

response.midInfo = doc; 
} 

Since there is not license for this, it returns a response with a **empty** midInfo and the MID server will see that as a mid server issue. This mid server issue is annoying but can be ignored. 

Resolution

Cause1:

1) Make sure the MID server is validated

2) Manually resolve the Issue on the instance

3) Restart the MID server, the issue should not comeback anymore

Cause2:

1) On the script comment out the license verifying code to work around it. 

OR

Add a business rule to ecc_agent_issue (MID server issues) table to automatically change the state of that particular error message to 'Resolved' so it does not appear on the MID issue list as a 'New' issue any longer.