Error: Failed to download from an Omicsoft URL
From Array Suite Wiki
How do I fix errors similar to "Failed to download from an Omicsoft URL"?
On some Windows installations, the default HTTPS version is TLS1.0/TLS1.1 for .NET applications such as OmicSoft Studio. Since TLS1.0/TLS1.1 has been deprecated in favor of TLS1.2 for enhanced data security, OmicSoft Studio v11 explicitly enables this newer protocol.
If the version of your OmicSoft Studio is using TLS1.0, you may get an error like "Failed to download from an Omicsoft URL" during an analysis or Genome Browser session.
Similarly, on startup of Windows OmicSoft Server you may get an error like "Failed to connect to https://resources.omicsoft.com/ for cloud based land operation. Please contact Omicsoft. Error: Failed to download from an Omicsoft URL. Error while retrieving URL=https://resources.omicsoft.com/oncoland/ArrayLand_Access.cfg: The underlying connection was closed: An unexpected error occurred on a receive.."
In both cases, the solution is to update to version 11.0 or later. This can be done automatically by running the latest installer: