Installing DRIVEOS is always failed

Please provide the following info (check/uncheck the boxes after creating this topic):
Software Version
DRIVE OS Linux 5.2.6
DRIVE OS Linux 5.2.6 and DriveWorks 4.0
DRIVE OS Linux 5.2.0
[y] DRIVE OS Linux 5.2.0 and DriveWorks 3.5
NVIDIA DRIVE™ Software 10.0 (Linux)
NVIDIA DRIVE™ Software 9.0 (Linux)
other DRIVE OS version

Target Operating System
[y] Linux

Hardware Platform
[y] NVIDIA DRIVE™ AGX Xavier DevKit (E3550)
NVIDIA DRIVE™ AGX Pegasus DevKit (E3550)

SDK Manager Version

Host Machine Version
[y] native Ubuntu 18.04

I use SDKManager to isntall DRIVEOS5.2.0 and the processing is always failed. the log is following

Dear @wang_chen2,
Could you share the log (98.2 KB) (96.4 KB)

Dear @wang_chen2,
There seems to be some issue with your network connection. I could download the cuda debian file on my machine. Do you need any network proxy to connect to internet/ download files ?

As @SivaRamaKrishnaNV mentioned, below is from your log. Can you access these deb packages from your host system?

18:41:06.971 - info: NV_TENSORRT_HOST_COMP@host: stopped downloading
18:41:06.971 - info: NV_TENSORRT_HOST_CROSS_LINUX_COMP@host: stopped downloading