I have an issue with exporting my model from rhino 8, using grasshopper, to rfem 6 (6.10.0010 Student version) using dlubal plugin (8.609.10.2).
when i toggle "true" on export component i get a message "1. The HTTP request is unauthorized with client authentication scheme 'Anonymous'. The authentication header received from the server was 'Basic realm="example"'."
I have the same localhost 8081 in rhino and in rfem (8081 to 8089)
i have Webservice SOAP turned on in rfem
i tried changing local hosts to different one (e.g. 10001 to 10009) (doesnt work)
the localhost:8089 is active (i checked it in cmd in windows - its listening)
i tried turning off the aplications, the whole PC. uninstalling and installing again, I tried different versions of Rfem and rhino plugin
I dont know what to do to fix that
I want to add, that the same case is with exporting model from revit, the same message is sent, but in the past it worked perfectly well,
I'll appreciate some help here
Hi Brytek,
welcome to our Dlubal Community 
We are very glad to have you here.
I made some changes in our system that probably will resolve the issue. Can you please check whether it has been resolved?
Hi,
I am also facing the same problem.
I don’t think it has been resolved, but i am using RFEM Trail version 6.11.0001
Hi Flexru,
welcome to our Dlubal Community We are very pleased to have you here!
That is indeed true. There seems to be an issue in the trial version workflow. We are investigating it currently.
I changed the settings of your account manually. So, it should work now for you.
Best Regards
Clemens Gutmann
Good news! We were able to localize the issue and resolved it 
HI. I am getting the same error. I am using version 6.13.0008. How can I fix it?
Hi Stavros,
welcome to the community.
I fixed your connection issue, the API was not activated for whatever reasons. I activated it now, please give it a try.
Best regards
Robert Milrath
Hi! I'm having the same error with Rhino 8, plugin version 8.612.12.1, dlubal version 6.13.0011. I saw you guys fixed it, however you did not explain how? Would you mind explaining how you fixed it?
Hi elisa,
welcome to the community.
I just checked your settings in the Extranet, it seems that API (gRPC) is already activated. But you did not create any API-Key so far. Therefore I would recommend to read:
Please try to run the simple example script from any IDE to make sure it works before you continue with more complex code.
I hope this helps.
Best regards
Robert Milrath
Good evening,
Im having the same error as the others. Rhino 8 Educational version, Dlubal plugin 8.612.12.1 and RFEM 6.14.0001. In the program settings, webservices are enabled.
When trying to export random geometry to RFEM such error occurs:
Command: ExportToRFEM
Connecting to server: http://localhost:8081/
Error occurred: The HTTP request is unauthorized with client authentication scheme 'Anonymous'. The authentication header received from the server was 'Basic realm="example"'.
I tried to change ports, but it didn't help.
I'd be grateful for help in resolving this problem.
Hi Bachrouch,
welcome to the community!
I fixed your connection issue, the API was not activated for whatever reasons. I activated it now, please give it a try.
Best regards
Robert Milrath
Thank you, it's working now! 
Hi I got te previous error as well as this error when I try to run the script. Can you please help me?
Hi Stavros,
please create a new topic for your problem, I checked the settings in our system at it seems that it has nothing to do with this topic here. Also it would be good to have more informations about your problems, that make life easier for us to support you.
How to Get Quick & Helpful Answers - Dlubal Community
Thank you.
Best regards
Robert Milrath
A post was split to a new topic: Export Issue
Dobry wieczór,
Mam ten sam błąd co inni, tyle że w Revicie 2025. Jak to naprawić? Treść komunikatu: "The HTTP request is unauthorized with client authentication scheme 'Anonymous'. The authentication header received from the server was 'Basic realm="example"'"
Hi zenon_drabik,
I activated the API in your comany account, please give it another try.
Best regards
Robert Milrath
It works. Thank you!