A watchdog timer for .NET. This simply adds the extension method Restart() to System.Timer. Should you download and use the NuGet package? Probably not. It's so thin, there's no reason to. Just copy the source file to your project.

Remember, Timer is IDisposable. You'll likely not use a using block, so make sure to dispose of it. For things like what is in the ElapsedEventArgs, see the Microsoft documentation.

TimeSpan timeout = TimeSpan.FromMinutes(10);
using (var watchdog = new Timer(timeout.TotalMilliseconds()))
{
      watchdog.AutoReset = false; // Often, you want to handle the problem only once. 
      watchdog.Elapsed += (s, e) => { RecoverFromCatastrophe() };
      // do stuff
      watchdog.Restart(); // kick the dog
      // do more stuff
      watchdog.Restart(); // kick the dog
      // etc.
}

The earliest implementations of System.Timer are in the .NET Framework v3.5 and in .NET Standard 2.0, so these are the lowest targets you can use.