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Intermittent authentication error InvalidComputer

 
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yuri.m



Joined: 06 Feb 2014
Posts: 5
Location: Canada

PostPosted: Thu Jun 20, 2019 1:19 pm    Post subject: Intermittent authentication error InvalidComputer Reply with quote

Hello,

We are using Infralution.Licensing.ASP 6.3.0
The project is a website that checks the license at initialization. It works fine for some Clients but intermittently fails for others returning 'InvalidComputer for <HOSTNAME>'
When I look at the key in the License Tracker I see two entries: one for <HOSTNAME> and another one for hostname.clientname.on.ca

We need to resolve this ASAP as the new Client is questioning the product quality because of this issue that might have substantial impact on our business.

Thank you
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Infralution



Joined: 28 Feb 2005
Posts: 5027

PostPosted: Thu Jun 20, 2019 11:32 pm    Post subject: Reply with quote

Quote:
'InvalidComputer for <HOSTNAME>'


Is that the exact error message? Because the original code does not actually produce a message like that. The closest message in the code is:

Quote:
The license is not valid for this computer. This could be because you have changed the computer name since installing the license.

Licensed Computer: {0}
This Computer: {1}

You may need to install a new license using the original License Key provided to you when you purchased the product.


One possible issue when licensing web applications is that you need to ensure that the access to the website by users is always by the same URL/domain. The license is locked (by default) to the domain name of the URL used to access the webpage. If a user installs a license using one domain (eg localserver) and then other users access the page via a different URL domain (eg hostname.clientname.on.ca) then this will cause this type of issue.

It's not clear whether you have sanitized (anonymised) the error message you posted to remove the actual details of the client URLs. If so it may be helpful if you could email the full unedited error message to support@infralution.com as this will help us understand what is happening.
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yuri.m



Joined: 06 Feb 2014
Posts: 5
Location: Canada

PostPosted: Fri Jun 21, 2019 2:07 pm    Post subject: Reply with quote

Thank you for the reply.
I sanitized the message by removing actual hostname indeed.
I'll send details in e-mail.
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