Cannot save RDP credentials on client when using workspace id

Question

Hi. We need to allow users to save their RDP credentials on the clients when connecting to the RDS environment.
This works fine when they check the "Allow me to save credentials checkbox" and then "Remember my credentials" checkbox in the username/password dialog.
However we have a 2012 R2 RDS deployment with two RDSH hosts connecting through the RDCB server. Therefore we're specifying the "workspace id:s: <rds_session_collection_name>" in the RDP file. From my testing, whenever the RDP file contains
the workspace id line, the "Remember my credentials" checkbox is missing from the user/pass dialog when connecting to the RDS environment and therefore the password is not saved in the user's credential manager.
How can we fix this problem?

Answer 1

Here a sample one:
screen mode id:i:2
desktopwidth:i:1920
desktopheight:i:1200
session bpp:i:16
winposstr:s:0,1,1281,384,1696,638
compression:i:1
keyboardhook:i:2
audiocapturemode:i:0
videoplaybackmode:i:1
connection type:i:7
networkautodetect:i:1
bandwidthautodetect:i:1
displayconnectionbar:i:1
enableworkspacereconnect:i:0
disable wallpaper:i:0
allow font smoothing:i:0
allow desktop com:0
disable full window drag:i:1
disable menu anims:i:1
disable themes:i:0
disable cursor setting:i:0
bitmapcachepersistenable:i:1
full address:s:rds.domain.local
audiomode:i:2
redirectprinters:i:0
redirectcomports:i:0
redirectsmartcards:i:0
redirectclipboard:i:1
redirectposdevices:i:0
drivestoredirect:s:*
autoreconnection enabled:i:1
authentication level:i:2
prompt for credentials:i:0
negotiate security layer:i:1
remoteapplicationmode:i:0
alternate shell:s:
shell working directory:s:
gatewayhostname:s:rdgw.domain.com
gatewayusagemethod:i:2
gatewaycredentialssource:i:0
gatewayprofileusagemethod:i:1
promptcredentialonce:i:1
use redirection server name:i:0
rdgiskdcproxy:i:0
kdcproxyname:s:
use multimon:i:0
gatewaybrokeringtype:i:0
smart sizing:i:1
username:s:[email protected]
full address:s:rds.domain.local
loadbalanceinfo:s:tsv://MS Terminal Services Plugin.1.Collection1
alternate full address:s:rds.domain.local
workspace id:s:rds.domain.local
If I remove the last line (workspace id), the "Remember my credentials" checkbox appears. The other parameters used when connecting to a load balanced RDS via RDCB (loadbalanceinfo, alternate full address) have no effect, ie. they can be present
or removed and it doesn't affect the state of that checkbox.
Ofcourse when I remove the workspace id line, I have to modify the full address of the server to which I connect (one of the RDSH server names).