Bug ID 675597: APM may prematurely close client-side RD Gateway connections on server-side disconnect

Last Modified: Oct 01, 2018

Bug Tracker

Affected Product:  See more info
BIG-IP APM(all modules)

Known Affected Versions:
13.0.0, 13.0.0 HF1, 13.0.0 HF2, 13.0.0 HF3, 13.0.1

Fixed In:
13.1.0

Opened: Jul 25, 2017
Severity: 3-Major

Symptoms

APM may prematurely close client-side RD Gateway connections on server-side disconnect. APM log would contain 'CallOutput on empty outputSink' error message, in this case. In rare cases, this might prevent RDP client from following RDP redirection (between RDP hosts in RDP farm), so client won't be able to connect via APM.

Impact

Rarely, this might prevent RDP client from following RDP redirection (between RDP hosts in RDP farm), so client won't be able to connect via APM.

Conditions

RDP server closes the connection before client.

Workaround

None.

Fix Information

Now, APM in RD Gateway role properly reports server-side disconnect to RDP client.

Behavior Change