License Error HostCLFC-00035-00155

So this error came out of nowhere… But my searches on the error were less than helpful, so I thought I’d document it here:

After a few days of FileCloud being used successfully, some of my users started getting this error:

Invalid License HostCLFC-00035-00155

This included users who were just fine the day before. However, I was able to access the server fine! And while researching the error, all I could find were links to purchase more licenses…

Turns out the problem was user stupidity! We have an Internal Domain that is similar to our external domain and users were specifically typing in the wrong domain. i.e. https://files.INT.domain/ rather then https://files.domain/.

Even though I have a rewrite rule in the Apache Config, it only rewrites the URL in HTTP not HTTPS. So if the users types in the URL with HTTPS:// it never takes effect.
Anyway, my testing found that you will get the license error if you use an incorrect URL. I’m not sure if it is a HTTPS Certificate mismatch on the different name or the license itself is hard coded to a specific DNS, but I did find that it works if you use an IP Address…

Hope this helps someone else.


Filecloud license is issued only for a specific domain unless you order an SPLA license for a multi-tenant site. So if users try to access the user portal using another URL which is pointed to the FileCloud server, then users will not be able to log in. This is not applicable when you access the FileCloud server over IP, so users should be able to access the IP without any issues.

It’s recommended to configure FileCloud URL to be accessible via https. Are you referring to to https://files.domain/ redirection? We don’t recommend custom redirects or redirect from http to https because mobile apps and other clients do not follow redirects (for security). Therefore it’s recommended to make these changes in your firewall or router to redirect all requests to https://files.domain to avoid such issues.

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I was thinking that was the case. I do have redirection on the HTTP side, but I don’t on the HTTPS. I have found in the past that if I enable it in HTTPS weird things break.

Regardless, as long as I know about this I can advise people what to do to fix the problem.


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Thank you for the update Bob. :slight_smile:

Are trial licenses for the community edition still being sent out? I signed up for one almost 24hrs ago and it never came through. I’ve checked my spam folder, etc.



Sorry for the delayed response.

Please let us know the email address and the URL for which you have signed up for so that we can check this in detail.

I am having similar issue after updating to yearly community license. advise me how to resolve.
error happened after updating from trail license to community license.

Hello @kumar

Thank you for choosing FileCloud!

We could see that the license is issued for the URL: including the ‘:82’

Can you please share us a screenshot of the web browser URL when you are installing the license.

Also, please let us know the exact URL you prefer is it or

Thanks for the prompt response,

Yes, the url includes :82 port. I am able to login to admin account only. Immediate after I login to admin account, got the Admin attention required screen showing to “Install New License file”

When I tried to install my license.xml file, receive error message “Invalid License Host”.

But, when I login to my local ip address, license file is updated till April 2021

Also note that when i login in to user account, received error message “IInvalid License HostCLFC-00035-00155”

Help me to resolve this issue.


Sent from Mail for Windows 10


Thanks for the update.

Can you please share us the screenshot of the following pages:

1.The option Server URL from Admin portal >> Settings >> Server >> Server URL
2. Screenshot of the web browser URL when you are installing the license on the Admin page.

Screenshot after installing the license

Screenshot Admin Portal>>Settings>>Server>>Server URL

Screenshot from local ip address Admin Portal>>Settings>>License


Thank you for the screenshots.

Please check if you are able to access the User portal if any trouble please let us know.

Also, please share us with the server logs after changing the log level to DEV from Admin portal >> Settings >> Server >> Log Level

You can find the server log from :
Windows : \xampp\htdocs\scratch\logs\log_YYYY-MM-DD.txt

Example: c:\xampp\htdocs\scratch\logs\log_2013-08-27.txt (Select the latest date)

Linux : /var/www/html/scratch/logs/log_YYYY-MM-DD.txt

Please upload the logs to


I have reinstalled the filecloud again, still my issue has not been resolved
I want to try the url without this port number or

pls update, so I can check.


Thank you for getting back to us.

If you are facing the same license error, this will not be because of the port included in your URL. To check the issue, can you please check the user portal and provide us the logs as mentioned in the previous update.

However, if you wish to change your URL, then please mail to, and our sales team will assist you.