I have installed a new server onto a site using their existing Wyse thin clients, which run RDP 5.2. The clients have connected without issue for a full day & a half, until I installed the termianl server CAL's onto the terminal server. Once that occured, any client that logged off & tried to log back on could not connect.
I am certain that the issue is the TS is not issuing Device CAL's to the thin clients as they are not running RDP 6.0 or greater. The one PC running XP is issued a license, as is the second server & another thin client running Embeded XP.
I have seen an article claiming that a registry edit will fix this.....
If you are using Ws08 SP2 just specify the bellow key and restart termservice will allow the connection.
Subkey: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Terminal Server\RCM
Registry entry: Use512LenPropCert
Data type: REG_DWORD
Value: 0 or 1
Can anyone confirm that this will work & if the value is meant to be 0 or 1?