# Certificate Error **URL:** \ **Category:** Issues developing apps\ **Tags:** v2\ **Created:** [May 18, 2020, 9:47am UTC](https://openvidu.discourse.group/t/certificate-error/844 "2020-05-18T09:47:34Z")\ **Posts on this page:** 5\ **Page:** 1
**Author:** ![mayurw](https://avatars.discourse-cdn.com/v4/letter/m/c67d28/32.png) [@mayurw](https://openvidu.discourse.group/u/mayurw)\ **Post date:** [May 18, 2020, 9:47am UTC](https://openvidu.discourse.group/t/certificate-error/844/1 "2020-05-18T09:47:34Z")
Hi, I am new to OpenVidu and I am trying to run OpenVidu demo on my local system on windows. when I was trying to JOIN by click join button with web address [http://192.168.43.229:8080/](http://192.168.43.229:8080/) I am getting below error and I am not going to further step. I am redirected to mention web address [https://192.168.43.229:4443/accept-certificate](https://192.168.43.229:4443/accept-certificate) with error This site can’t be reached **192.168.43.229** refused to connect. please help me how to solve below error ERR\_CONNECTION\_REFUSED I want to develop a simple video conferencing application using c#, I am integration this using .net core. But before i am following basic steps from open vidu documentation by choosing javascript technique. ---
**Author:** ![mayurw](https://avatars.discourse-cdn.com/v4/letter/m/c67d28/32.png) [@mayurw](https://openvidu.discourse.group/u/mayurw)\ **Post date:** [May 18, 2020, 10:42am UTC](https://openvidu.discourse.group/t/certificate-error/844/2 "2020-05-18T10:42:26Z")
Please can anyone assist me here ? ---
**Author:** ![micael.gallego](https://yyz2.discourse-cdn.com/free1/user_avatar/openvidu.discourse.group/micael.gallego/32/2_2.png) [@micael.gallego](https://openvidu.discourse.group/u/micael.gallego)\ **Post date:** [May 18, 2020, 10:16pm UTC](https://openvidu.discourse.group/t/certificate-error/844/3 "2020-05-18T22:16:17Z")
Hello @mayurw, Can you describe how have you deployed OpenVidu? What Docker edition you have? Docker Toolbox or Docker Desktop for Windows? It is very important because depending on that, the way to proceed is very different. I suppose you have read this documentation, righ? [https://docs.openvidu.io/en/2.14.0/troubleshooting/#3-i-am-using-windows-to-run-the-tutorials-develop-my-app-anything-i-should-know](https://docs.openvidu.io/en/2.14.0/troubleshooting/#3-i-am-using-windows-to-run-the-tutorials-develop-my-app-anything-i-should-know) ---
**Author:** ![mayurw](https://avatars.discourse-cdn.com/v4/letter/m/c67d28/32.png) [@mayurw](https://openvidu.discourse.group/u/mayurw)\ **Post date:** [May 19, 2020, 11:54am UTC](https://openvidu.discourse.group/t/certificate-error/844/4 "2020-05-19T11:54:51Z")
Hello Micael, Greetings for the day!! Thank you so much for your feedback. No I did not went through link which you have shared today before. But today have tried to follow the steps provided in document. I have installed dockers for windows. But when I run it I caught up with error .Please find attached , if you can help with that to. I want to start development using open vidu using .net technology. My target is to make simple video conference application using .net technology. I followed Javascript way to do it. As I am starting from 0, what is use of docker in this. How I start my integration, what are steps I follow properly to be on track. Please assist and let us know your feedback. Warm Regards, Mayur Waghulde Winjit Technologies [www.winjit.com](http://www.winjit.com/) | Email:[mayurw@winjit.com](mailto:mayurw@winjit.com) | Phone: +91-0253-6633999(115) (Attachment Docker\_Windows\_Error.txt is missing) ---
**Author:** ![micael.gallego](https://yyz2.discourse-cdn.com/free1/user_avatar/openvidu.discourse.group/micael.gallego/32/2_2.png) [@micael.gallego](https://openvidu.discourse.group/u/micael.gallego)\ **Post date:** [May 19, 2020, 1:19pm UTC](https://openvidu.discourse.group/t/certificate-error/844/5 "2020-05-19T13:19:59Z")
First of all, please try to execute the tutorials as is in the documentation. Then, the next step is implement the application with C#. Regards.