Error on Access RDP Connections

Document ID : KB000006551
Last Modified Date : 14/02/2018
Show Technical Document Details
Issue:

Users are experiencing issues into all RDP connections by PAM:

 

 

Error type: RdpException. 

Error message: Unable to connect to backend device. Please contact Administrator.. 

 

Stack trace: 

com.ca.xsuite.app.rdp3.client.handler.TCPStreamHandler.read(Unknown Source) 

com.ca.xsuite.app.rdp3.core.layer.channel.BaseITULayer.receive(Unknown Source) 

com.ca.xsuite.app.rdp3.core.layer.ITULayer.mainLoop(Unknown Source) 

com.ca.xsuite.app.rdp3.client.app.RDesktop.main(Unknown Source) 

com.ca.xsuite.launcher.a.n.run(Unknown Source) 

java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) 

java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) 

java.lang.Thread.run(Unknown Source) 

 

Cause: 

Error type: EOFException. 

Error message: . 

 

Stack trace: 

com.ca.xsuite.app.rdp3.core.impl.RDPInputStream.readFully(Unknown Source) 

com.ca.xsuite.app.rdp3.client.handler.TCPStreamHandler.read(Unknown Source) 

com.ca.xsuite.app.rdp3.core.layer.channel.BaseITULayer.receive(Unknown Source) 

com.ca.xsuite.app.rdp3.core.layer.ITULayer.mainLoop(Unknown Source) 

com.ca.xsuite.app.rdp3.client.app.RDesktop.main(Unknown Source) 

com.ca.xsuite.launcher.a.n.run(Unknown Source) 

java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) 

java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) 

java.lang.Thread.run(Unknown Source)

Environment:
CA PAM 2.7.0
Cause:

Inconsistent DNS responses.

Resolution:

After checking the settings we found out that customer's DNS were behaving inconsistently - the name resolution was intermittent so, frequently, CA PAM was unable to resolve the endpoint names to their actual addresses.

 

Fixing the DNS has fixed the issue.