The Citrix server requires 128 bit encryption. If your Citrix client is not set to use 128 bit encryption, you will receive the following message when you attempt to login:
You do not have the proper encryption level to access this Session.
To verify or update the encryption level, follow these steps:
If you are a Windows Users
1.Start the Citrix Program Neighborhood.
2.Highlight your ARMS Server Farm connection icon.Do not actually open the connection.
3.From the File pull-down menu, select Properties.
4.Click the "Options" tab.
5.Select "128 Bit" as the "Encryption Level" from the drop down box.
You may need to de-select "Use Custom Default" to change the encryption level.
Do not select "128 Bit for Login Only."
If you do not have the "Encryption Level" option, you need to upgrade your client software. You will get the client software from âCitrix Setup & Connection Instructions for Windows 9x/NT/2000/XPâ
6. Click OK.
You can also refer the bug ID âCSCsm71691â which has workaround for the similar kind of issue.