# Which .xml file is needed to configure the PLUS server of NDI Polaris Vega ST

**URL:** <https://discourse.slicer.org/t/which-xml-file-is-needed-to-configure-the-plus-server-of-ndi-polaris-vega-st/37770>\
**Category:** Support\
**Tags:** surgical-navigation, plus\
**Created:** [August 8, 2024, 9:38am UTC](https://discourse.slicer.org/t/which-xml-file-is-needed-to-configure-the-plus-server-of-ndi-polaris-vega-st/37770 "2024-08-08T09:38:44Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![ning\_w](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/ning_w/32/68617_2.png) [@ning\_w](https://discourse.slicer.org/u/ning_w)\
**Post date:** [August 8, 2024, 9:38am UTC](https://discourse.slicer.org/t/which-xml-file-is-needed-to-configure-the-plus-server-of-ndi-polaris-vega-st/37770/1 "2024-08-08T09:38:44Z")

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This is my first time to learn about plus server. I just downloaded the plus software and want to configure the plus server software for NDI polaris Vega ST, but I don’t know which .xml file I need to use. Can anyone tell me? Secondly, I haven’t figured out how to change the configuration file. What specific changes are needed? Can anyone teach me in detail?

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**Author:** ![cpinter](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/cpinter/32/7995_2.png) [@cpinter](https://discourse.slicer.org/u/cpinter)\
**Post date:** [August 8, 2024, 2:35pm UTC](https://discourse.slicer.org/t/which-xml-file-is-needed-to-configure-the-plus-server-of-ndi-polaris-vega-st/37770/2 "2024-08-08T14:35:21Z")

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For the record this conversation is taking place here apparently

> <https://github.com/PlusToolkit/PlusLib/issues/519>
>
> Hello,
> 
> I haven't managed to connect to the NDI Polaris Vega using the Plus Se…rver Launcher. I always get the message "Connection failed!", although the device is plugged in and working fine with the NDI software.
> 
> In the config file I have replaced the tool with the one I am using and have saved the .rom file in the correct folder, but this did not seem to solve the problem. I have attached the log and config files, if that helps.
> 
> \<img width="1144" alt="config1" src="https://user-images.githubusercontent.com/20545651/55159516-7d74e080-5161-11e9-8fe6-56c7a862c111.png"\>
> 
> \<img width="1140" alt="config2" src="https://user-images.githubusercontent.com/20545651/55159517-7d74e080-5161-11e9-93c8-4cb1fd66ecee.png"\>
> 
> \[100617\_094842\_PlusLog.txt\](https://github.com/PlusToolkit/PlusLib/files/3017990/100617\_094842\_PlusLog.txt)
> 
> Thank you in advance!

I’d like to ask all users of the forum to not flood the developers via multiple channels at the same time. We are humans and sometimes cannot answer immediately. Posting the same thing to multiple places will not speed things up, but it does make a mess. Thanks everyone.