Hey community!

I thought I'd drop you a message as I've been spending many, many hours but I can't get my Umbraco site working.

I've developed my Umbraco website in VS2022. Locally, everything works fine. I've built my website and got to the point to deploy it to a production environment. I use Azure DevOps so after setting up my release pipeline I thought I'd be welcomed with a working website - but that doesn't happen. I restored the MSSQL DB from my local environment on the server so I'm sure it is exactly the same database that contains all content etc. Connections etc. have been verified - all is connecting well.

What happens is when I navigate to my homepage I get a 404. When I navigate to my backoffice at /umbraco/ I immediately get redirected to my homepage which in turn gives a 404.

Software versions used: - .NET 6.0 - Umbraco 10.3.2 - IIS 8.5.9600.16384 - Windows Server 2012 R2

My other Umbraco website on .NET 5 on that same server and IIS works fine.

A small part of the log:

{"@t":"2022-12-09T09:33:15.1289257Z","@mt":"Content root path: {contentRoot}","contentRoot":"d:\\deploy\\my-website-folder","SourceContext":"Microsoft.Hosting.Lifetime","ProcessId":3392,"ProcessName":"w3wp","ThreadId":1,"ApplicationId":"e1483c593e0be7527107366c08abf8e91d3e7675","MachineName":"H2399728","Log4NetLevel":"INFO "}
{"@t":"2022-12-09T09:33:15.1665512Z","@mt":"Begin request [{HttpRequestId}]: {RequestUrl}","@l":"Verbose","HttpRequestId":"17757c53-3933-447f-861d-1628c5a3b663","RequestUrl":"/umbraco/","SourceContext":"Umbraco.Cms.Web.Common.Middleware.UmbracoRequestMiddleware","RequestId":"80001d23-0001-dd00-b63f-84710c7967bb","RequestPath":"/umbraco/","ProcessId":3392,"ProcessName":"w3wp","ThreadId":3,"ApplicationId":"e1483c593e0be7527107366c08abf8e91d3e7675","MachineName":"H2399728","Log4NetLevel":"ALL  ","HttpRequestNumber":1,"HttpSessionId":"0"}
{"@t":"2022-12-09T09:33:15.1954492Z","@mt":"Creating Css bundle 'umbraco-backoffice-init-css' with 5 files and a custom pipeline","@l":"Debug","SourceContext":"Smidge.BundleManager","RequestId":"80001d23-0001-dd00-b63f-84710c7967bb","RequestPath":"/umbraco/","ProcessId":3392,"ProcessName":"w3wp","ThreadId":3,"ApplicationId":"e1483c593e0be7527107366c08abf8e91d3e7675","MachineName":"H2399728","Log4NetLevel":"DEBUG","HttpRequestId":"17757c53-3933-447f-861d-1628c5a3b663","HttpRequestNumber":1,"HttpSessionId":"0"}
{"@t":"2022-12-09T09:33:15.1970417Z","@mt":"Creating Css bundle 'umbraco-authorize-upgrade-css' with 3 files and a custom pipeline","@l":"Debug","SourceContext":"Smidge.BundleManager","RequestId":"80001d23-0001-dd00-b63f-84710c7967bb","RequestPath":"/umbraco/","ProcessId":3392,"ProcessName":"w3wp","ThreadId":3,"ApplicationId":"e1483c593e0be7527107366c08abf8e91d3e7675","MachineName":"H2399728","Log4NetLevel":"DEBUG","HttpRequestId":"17757c53-3933-447f-861d-1628c5a3b663","HttpRequestNumber":1,"HttpSessionId":"0"}
{"@t":"2022-12-09T09:33:15.1972072Z","@mt":"Creating Css bundle 'umbraco-preview-css' with 1 files and a custom pipeline","@l":"Debug","SourceContext":"Smidge.BundleManager","RequestId":"80001d23-0001-dd00-b63f-84710c7967bb","RequestPath":"/umbraco/","ProcessId":3392,"ProcessName":"w3wp","ThreadId":3,"ApplicationId":"e1483c593e0be7527107366c08abf8e91d3e7675","MachineName":"H2399728","Log4NetLevel":"DEBUG","HttpRequestId":"17757c53-3933-447f-861d-1628c5a3b663","HttpRequestNumber":1,"HttpSessionId":"0"}
{"@t":"2022-12-09T09:33:15.2782487Z","@mt":"Creating Js bundle 'umbraco-preview-js' with 12 files and a custom pipeline","@l":"Debug","SourceContext":"Smidge.BundleManager","RequestId":"80001d23-0001-dd00-b63f-84710c7967bb","RequestPath":"/umbraco/","ProcessId":3392,"ProcessName":"w3wp","ThreadId":3,"ApplicationId":"e1483c593e0be7527107366c08abf8e91d3e7675","MachineName":"H2399728","Log4NetLevel":"DEBUG","HttpRequestId":"17757c53-3933-447f-861d-1628c5a3b663","HttpRequestNumber":1,"HttpSessionId":"0"}
{"@t":"2022-12-09T09:33:15.2790895Z","@mt":"Creating Js bundle 'umbraco-tinymce-js' with 14 files and a custom pipeline","@l":"Debug","SourceContext":"Smidge.BundleManager","RequestId":"80001d23-0001-dd00-b63f-84710c7967bb","RequestPath":"/umbraco/","ProcessId":3392,"ProcessName":"w3wp","ThreadId":3,"ApplicationId":"e1483c593e0be7527107366c08abf8e91d3e7675","MachineName":"H2399728","Log4NetLevel":"DEBUG","HttpRequestId":"17757c53-3933-447f-861d-1628c5a3b663","HttpRequestNumber":1,"HttpSessionId":"0"}
{"@t":"2022-12-09T09:33:15.2797930Z","@mt":"Creating Js bundle 'umbraco-backoffice-js' with 36 files and a custom pipeline","@l":"Debug","SourceContext":"Smidge.BundleManager","RequestId":"80001d23-0001-dd00-b63f-84710c7967bb","RequestPath":"/umbraco/","ProcessId":3392,"ProcessName":"w3wp","ThreadId":3,"ApplicationId":"e1483c593e0be7527107366c08abf8e91d3e7675","MachineName":"H2399728","Log4NetLevel":"DEBUG","HttpRequestId":"17757c53-3933-447f-861d-1628c5a3b663","HttpRequestNumber":1,"HttpSessionId":"0"}
{"@t":"2022-12-09T09:33:15.3263044Z","@mt":"Creating Js bundle 'umbraco-backoffice-extensions-js' with 0 files and a custom pipeline","@l":"Debug","SourceContext":"Smidge.BundleManager","RequestId":"80001d23-0001-dd00-b63f-84710c7967bb","RequestPath":"/umbraco/","ProcessId":3392,"ProcessName":"w3wp","ThreadId":3,"ApplicationId":"e1483c593e0be7527107366c08abf8e91d3e7675","MachineName":"H2399728","Log4NetLevel":"DEBUG","HttpRequestId":"17757c53-3933-447f-861d-1628c5a3b663","HttpRequestNumber":1,"HttpSessionId":"0"}
{"@t":"2022-12-09T09:33:15.3289168Z","@mt":"Creating Js bundle 'umbraco-backoffice-non-optimized-js' with 0 files and a custom pipeline","@l":"Debug","SourceContext":"Smidge.BundleManager","RequestId":"80001d23-0001-dd00-b63f-84710c7967bb","RequestPath":"/umbraco/","ProcessId":3392,"ProcessName":"w3wp","ThreadId":3,"ApplicationId":"e1483c593e0be7527107366c08abf8e91d3e7675","MachineName":"H2399728","Log4NetLevel":"DEBUG","HttpRequestId":"17757c53-3933-447f-861d-1628c5a3b663","HttpRequestNumber":1,"HttpSessionId":"0"}
{"@t":"2022-12-09T09:33:15.3300991Z","@mt":"Creating Css bundle 'umbraco-backoffice-css' with 0 files and a custom pipeline","@l":"Debug","SourceContext":"Smidge.BundleManager","RequestId":"80001d23-0001-dd00-b63f-84710c7967bb","RequestPath":"/umbraco/","ProcessId":3392,"ProcessName":"w3wp","ThreadId":3,"ApplicationId":"e1483c593e0be7527107366c08abf8e91d3e7675","MachineName":"H2399728","Log4NetLevel":"DEBUG","HttpRequestId":"17757c53-3933-447f-861d-1628c5a3b663","HttpRequestNumber":1,"HttpSessionId":"0"}
{"@t":"2022-12-09T09:33:15.3302366Z","@mt":"Creating Js bundle 'umbraco-backoffice-non-optimized-css' with 0 files and a custom pipeline","@l":"Debug","SourceContext":"Smidge.BundleManager","RequestId":"80001d23-0001-dd00-b63f-84710c7967bb","RequestPath":"/umbraco/","ProcessId":3392,"ProcessName":"w3wp","ThreadId":3,"ApplicationId":"e1483c593e0be7527107366c08abf8e91d3e7675","MachineName":"H2399728","Log4NetLevel":"DEBUG","HttpRequestId":"17757c53-3933-447f-861d-1628c5a3b663","HttpRequestNumber":1,"HttpSessionId":"0"}
{"@t":"2022-12-09T09:33:15.6429243Z","@mt":"End Request [{HttpRequestId}]: {RequestUrl} ({RequestDuration}ms)","@l":"Verbose","HttpRequestId":"17757c53-3933-447f-861d-1628c5a3b663","RequestUrl":"/umbraco/","RequestDuration":479.2682,"SourceContext":"Umbraco.Cms.Web.Common.Middleware.UmbracoRequestMiddleware","RequestId":"80001d23-0001-dd00-b63f-84710c7967bb","RequestPath":"/umbraco/","ProcessId":3392,"ProcessName":"w3wp","ThreadId":3,"ApplicationId":"e1483c593e0be7527107366c08abf8e91d3e7675","MachineName":"H2399728","Log4NetLevel":"ALL  ","HttpRequestNumber":1,"HttpSessionId":"0"}
{"@t":"2022-12-09T09:33:15.6894551Z","@mt":"Begin request [{HttpRequestId}]: {RequestUrl}","@l":"Verbose","HttpRequestId":"89ceeb68-9639-493b-98e5-ca80197a66e7","RequestUrl":"/","SourceContext":"Umbraco.Cms.Web.Common.Middleware.UmbracoRequestMiddleware","RequestId":"80002a6f-0001-f300-b63f-84710c7967bb","RequestPath":"/","ProcessId":3392,"ProcessName":"w3wp","ThreadId":3,"ApplicationId":"e1483c593e0be7527107366c08abf8e91d3e7675","MachineName":"H2399728","Log4NetLevel":"ALL  ","HttpRequestNumber":2,"HttpSessionId":"0"}
{"@t":"2022-12-09T09:33:15.6920551Z","@mt":"End Request [{HttpRequestId}]: {RequestUrl} ({RequestDuration}ms)","@l":"Verbose","HttpRequestId":"89ceeb68-9639-493b-98e5-ca80197a66e7","RequestUrl":"/","RequestDuration":2.6819,"SourceContext":"Umbraco.Cms.Web.Common.Middleware.UmbracoRequestMiddleware","RequestId":"80002a6f-0001-f300-b63f-84710c7967bb","RequestPath":"/","ProcessId":3392,"ProcessName":"w3wp","ThreadId":3,"ApplicationId":"e1483c593e0be7527107366c08abf8e91d3e7675","MachineName":"H2399728","Log4NetLevel":"ALL  ","HttpRequestNumber":2,"HttpSessionId":"0"}
{"@t":"2022-12-09T09:33:20.1603208Z","@mt":"Signaled ({Signaled}) ({SignalSource})","@l":"Debug","Signaled":"first","SignalSource":"environment","SourceContext":"Umbraco.Cms.Core.Runtime.MainDom","ProcessId":3392,"ProcessName":"w3wp","ThreadId":14,"ApplicationId":"e1483c593e0be7527107366c08abf8e91d3e7675","MachineName":"H2399728","Log4NetLevel":"DEBUG"}
{"@t":"2022-12-09T09:33:20.1603901Z","@mt":"Stopping ({SignalSource})","SignalSource":"environment","SourceContext":"Umbraco.Cms.Core.Runtime.MainDom","ProcessId":3392,"ProcessName":"w3wp","ThreadId":14,"ApplicationId":"e1483c593e0be7527107366c08abf8e91d3e7675","MachineName":"H2399728","Log4NetLevel":"INFO "}
{"@t":"2022-12-09T09:33:20.1647993Z","@mt":"Stopped ({SignalSource})","@l":"Debug","SignalSource":"environment","SourceContext":"Umbraco.Cms.Core.Runtime.MainDom","ProcessId":3392,"ProcessName":"w3wp","ThreadId":14,"ApplicationId":"e1483c593e0be7527107366c08abf8e91d3e7675","MachineName":"H2399728","Log4NetLevel":"DEBUG"}

It seems that at least something from Umbraco is running. However, after GETting /umbraco/ it immediately redirects and gives a 404. I can't see my website nor can I access Umbraco backoffice. Strangely enough, accessing /umbraco/ServerVariables does work and shows the server variables - nothing strange there, all looks good. I don't have ANY exceptions at all in the logs, not even when Verbose logging and Debug mode is enabled. Same applies to the Windows Event Logs: nothing there relevant to this issue.

Anyone have any idea on WTF is happening here and why things are not working as they should?

Thank you so much in advance!