[Fixed/Found] IDataProtectionBuilder - PersistKeysToFileSystem

Hi everyone,

I'm using IDataProtectionBuilder to encrypt/decrypt data, and because the application is split on several machines I'm using as you can see it below.

services.AddDataProtection()
.PersistKeysToFileSystem(new DirectoryInfo(@"\\SharedKeyFolder"))
.SetDefaultKeyLifetime(TimeSpan.FromDays(30))
.SetApplicationName("ApplicationName");

My issue is that when I encrypt with machine 1 and decrypt with machine 2, the machine 2 throws an exception that cant find the key. 

I'm missing something from the configuration ? 

Thanks,

Mircea

https://docs.microsoft.com/en-us/aspnet/core/security/data-protection/configuration/overview?view=aspnetcore-2.1&tabs=aspnetcore2x

Later Edit: 

Seems like is working, after further investigation the cause was made of an old deployment that didn't had Certificate with NetworkPath.