Unable to Install Jetpack 4.4

I have successfully installed Jetpack 4.4 on ubuntu 18.04 at my residence.
In my office the network is behind proxy server thus while trying to install the installation stuck at about 99.9% and remains there for hours.
Please suggest.
part 1 of log file with error

2020-07-03 15:00:25.784 - info: Loading data from server: l1url. Url: https://developer.download.nvidia.com/sdkmanager/sdkm-config/main/sdkml1_repo.json
2020-07-03 15:00:25.823 - error: siSendGAEvent failed with error:
{
message: ‘tunneling socket could not be established, statusCode=403’,
stack: ‘Error: tunneling socket could not be established, statusCode=403\n’ +
’ at ClientRequest.onConnect (/opt/nvidia/sdkmanager/resources/app/node_modules/tunnel-agent/index.js:166:19)\n’ +
’ at Object.onceWrapper (events.js:291:20)\n’ +
’ at ClientRequest.emit (events.js:203:13)\n’ +
’ at Socket.socketOnData (_http_client.js:483:11)\n’ +
’ at Socket.emit (events.js:203:13)\n’ +
’ at addChunk (_stream_readable.js:295:12)\n’ +
’ at readableAddChunk (_stream_readable.js:276:11)\n’ +
’ at Socket.Readable.push (_stream_readable.js:210:10)\n’ +
’ at TCP.onStreamRead (internal/stream_base_commons.js:166:17)’,
code: ‘ECONNRESET’
}
part 1 of log file with error

2020-07-03 15:00:54.539 - info: stdout: Host Deb package NV_L4T_NVIDIA_NSIGHT_SYSTEMS_HOST_COMP NsightSystems-linux-public-2020.2.3.4-444e9f2.deb installed successfully.

2020-07-03 15:00:54.540 - error: Failed: using adapter to query host component: NV_CUDA_HOST_COMP version: 10.2 for bundle: . Exit code: 45
2020-07-03 15:00:54.544 - error: Failed: using adapter to query host component: NV_CUDA_CROSS_HOST_COMP version: 10.2 for bundle: . Exit code: 45
2020-07-03 15:00:54.547 - error: Failed: using adapter to query host component: NV_OPENCV_HOST_COMP version: 4.1.1 for bundle: . Exit code: 45
2020-07-03 15:00:54.548 - info: Succeed: using adapter to query host component: NV_L4T_NVIDIA_NSIGHT_GRAPHICS_HOST_COMP version: 2020.1 for bundle: . Exit code: 0
2020-07-03 15:00:54.549 - info: Succeed: using adapter to query host component: NV_L4T_NVIDIA_NSIGHT_SYSTEMS_HOST_COMP version: 2020.2 for bundle: . Exit code: 0
2020-07-03 15:00:54.551 - error: Failed: using adapter to query host component: NV_VPI_HOST_COMP version: 0.2.0 for bundle: . Exit code: 45
2020-07-03 15:00:54.553 - info: stdout: Host Deb package [{cuda-cross-aarch64-10-2 10.2.89}] not installed; [deb_name]: cuda-repo-cross-aarch64-10-2-local-10.2.89_1.0-1_all.deb

2020-07-03 15:00:54.553 - info: stdout: Host Deb package [{vpi 0.2.0}] not installed; [deb_name]: vpi-lib-0.2.0-cuda10-x86_64-linux.deb

2020-07-03 15:00:54.563 - info: stdout: exec_command: dpkg-query -W -f=’{db:Status-abbrev} {Version}’ libvisionworks-samples

2020-07-03 15:00:54.586 - info: stdout: Host Deb package [{libvisionworks 1.6.0.501} {libvisionworks-dev 1.6.0.501} {libvisionworks-samples 1.6.0.501}] not installed; [deb_name]: libvisionworks-repo_1.6.0.501_amd64.deb

2020-07-03 15:00:54.587 - error: Failed: using adapter to query host component: NV_VISIONWORKS_HOST_COMP version: 1.6 for bundle: . Exit code: 45
2020-07-03 15:01:02.503 - info: common download path set to /home/rajiv/Downloads/nvidia/sdkmHdownloads
2020-07-03 15:01:22.301 - info:

If required I can send full log file or content of .nvsdkm directory
regards
rajiv

Finally problem solved, despite all sdk downloaded sdkmanager looking for more files from internet. The proxy server (despite properly configuration) in between stopping installation.
Bypass the proxy server was the only solution and it worked immediately.
Thanks for your attention.