أنشطة "ruben.vazquez-chapa@frogslayer.com"

I have tried it on two different computers with the same result

Is that not what we did when you said to do this?

I think everything is ok locally, right?

Can you add below code to identity server and api?

public void ConfigureServices(IServiceCollection services) 
{ 
     var redis = ConnectionMultiplexer.Connect(configuration["Redis:Configuration"]); 
        context.Services.AddDataProtection() 
            .PersistKeysToStackExchangeRedis(redis, "Your-DataProtection-Keys") 
            .SetApplicationName("YourAppName"); 
} 

I have tried that on both the api and identity server and they work when they are called together on each individual application.

The issue with that is that the GenerateEmailConfirmationTokenAsync is being called on the api while ConfirmEmailAsync is on the idenentity server so having the same UserManager is not possible accross both.

Locally they run on the same instance but are started on separate processes and it still does not work

It is not working locally either.

I have added that and it still gives me the same error.

I have also tried using that along with DisableAutomaticKeyGeneration() with no luck also.