SSL error 61:Ceritificate error

My end user while accessing a SQL application he is facing the below error.
Cannot connect to the citrix xenapp server.
SSL Error 61:you have not chosen to trust "Entrust  Certification Authority-L1C", the issuer  of the server's security certificate.
We have one xenapp server for this SQL application and  we have configured two users for this application, one user is able to access application and the other user is facing the above mentioned error.

Please provide me with the solution ASAP as this issue has been escalated.
m kAsked:
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btanExec ConsultantCommented:
See this
Complete the following steps to resolve this issue:
Download or obtain the SSL root certificate/intermediate certificate (.crt/.cer) file issued by your SSL certificate provider.
Root certificate/intermediate certificate can be downloaded from your SSL certificate provider's website or can be obtained on request. Usually root certificate is present in the certificate bundle provided by your SSL service provider along with intermediate and server certificates.

Install the root certificate/intermediate certificate on the client machine.

If an antivirus is installed on the client machine then ensure that the antivirus trusts the certificate.
Arundev PDNetwork AdministratorCommented:
Hey, I too have face similar issues in our environment and got rid of it by reinstalling the citrix receiver and upgrading to the latest version.
Hope this helps.

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m kAuthor Commented:
Thanks it Worked
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