Sitecore Serialization - Error connecting to /.well-known/openid-configuration: Bad Gateway

Hi Team,

Recently, I faced an issue where for the new project my Sitecore serialization started giving me following error.

Error: "Error connecting to https://sc10.dev.local/.well-known/openid-configuration: Bad Gateway"

My identity server when browsed above url was also not working and showing following.

Well, I tried seeing logs and different things, I also followed what is given on these links.

https://sitecore.stackexchange.com/questions/34744/open-id-configuration-issue-with-sitecore-cli

https://tekkishare.azurewebsites.net/pages/sitecore-clilogin-error-badgateway

https://www.stockpick.nl/english/sitecore-cli-login-error/

But I was still getting the same error.

Solution

If you see above screenshot of my identity server, in "Troubleshooting steps" it is mentioned that "Check the system event log for error messages."

It triggered me, I opened event log of windows, and I could see following error.

Now, i already update my .net run time version according to identity server's config file, which given on following path (also above blog link also mentioned the same step, which i performed but still it did not work)

C:\inetpub\wwwroot\sc10IdentityServer.dev.local/Sitecore.IdentityServer.Host.runtimeconfig.json

But it was showing me to download 3.1.0 which I already did, but somehow something was missing, so now what helped me was

in the event log itself, it provides link to missing part, you just click that link, and it downloads that version, for me the link was pointing to following.

After downloading the runtime, it worked like a charm for me & serialization is working and identity server error of 502 was also gone

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