# Nvidia SDKManager Download Issues **URL:** https://forums.developer.nvidia.com/t/nvidia-sdkmanager-download-issues/180427 **Category:** Jetson TX2 **Tags:** sdkm **Created:** [June 10, 2021, 12:45pm UTC](https://forums.developer.nvidia.com/t/nvidia-sdkmanager-download-issues/180427 "2021-06-10T12:45:27Z") **Posts on this page:** 1 **Showing post:** 4
### Author: ![Meeke](https://developer.download.nvidia.com/images/forums/profile-default-devtalk-84.png) [@Meeke](https://forums.developer.nvidia.com/u/Meeke) #### Post date: [June 10, 2021, 10:43pm UTC](https://forums.developer.nvidia.com/t/nvidia-sdkmanager-download-issues/180427/4 "2021-06-10T22:43:10Z")
So, I managed to speak to a few people and followed a corporate procedure for setting up Ubuntu correctly to use our company’s proxy and cert chain and everything else on the system works. apt-get works, curl of [https://google.com](https://google.com) works, Firefox works to [https://google.com](https://google.com), Anaconda works, the only one not working is the SDKManager. It still gives me “self signed certificate in the certificate chain” errors. Does anyone know what the SDKManager uses under the hood to download these files? It doesn’t appear to respect the system settings that’s for sure. It does use the $HTTPS\_PROXY environment variable for the proxy location, but nothing about disabling SSL or pointing it to the cert chain located at /usr/local/share/ca-certificates appears to be used. I see there is a ~/.nvsdkm/.sdkm.bashrc file. Can something be set in there to resolve this? Otherwise, does Nvidia offer any other options to get a list of these files to batch download via a browser or something? I saw this post [Sdkmanager download error](https://forums.developer.nvidia.com/t/sdkmanager-download-error/165886) but man, there’s a lot of URLs to pull from that json then to individually download… Thanks again for the help in advance. @EdwardZhou @dusty_nv? --- _[View the full topic](https://forums.developer.nvidia.com/t/nvidia-sdkmanager-download-issues/180427)._