I'm transferring my IIS-based API projects to a landline server in Germany with IPv4 and IPv6 addressing. After IIS has been installed and set up as the old server continues to receive this error.
APIs are developed in C # Visual Studio and are mostly .aspx pages
New server configurations: - Windows Server 2012 R2 - Microsoft .NET Framework: 4.0.30319; Version of ASP.NET:4.7.2053.0
