One-line install failed at create instance ADS01

[Kagami_Otonashi]

OS Name/Version: Ubuntu 22.04.5 server

Product Name/Version: v2.6.0.10

Problem Description:
I’m running the one line command until step
[Activity/1] Audit: Unknown/None [CreateInstance] Creating instance ADS01 using ADS module on port 8080.
Then I got TaskCanceledException

[Error/10] TaskCanceledException
[Error/10] [2] (TaskCanceledException) : A task was canceled.
[Error/10]    at Net.Http.HttpConnectionPool.SendWithVersionDetectionAndRetryAsync(HttpRequestMessage request, Boolean async, Boolean doRequestAuth, CancellationToken cancellationToken)
   at Net.Http.RedirectHandler.SendAsync(HttpRequestMessage request, Boolean async, CancellationToken cancellationToken)
   at Net.Http.HttpClient.GetStringAsyncCore(HttpRequestMessage request, CancellationToken cancellationToken)
[Info/10] Instance creation failed. Reason: "The core archive failed to download or unpack: Failed to find a release matching the specified version: Mainline/ - This version may no longer be available to download, you should update to a newer version."

Actions taken to resolve so far:
I’ve try reboot and run getamp addRepo

[ThePotatoKing]

Make sure that you can reach out to: https://cdn-downloads.c7rs.com/ from that system, and check to see if the system has any IPv6 configuration issues

[Kagami_Otonashi]

After ping test, turned out it was my ISP blocked my connection to your server.
The install script worked after I turn on VPN.

Thanks for your help!!!