Hi there! I see you're encountering the DISH Anywhere app error 4000. Could you share a bit more about when this error occurs? For example, does it happen when you try to stream live TV, DVR recordings, or On Demand content? Also, are you using the app on your Windows device through a browser or through the DISH Anywhere app itself?

In the meantime, here are some common steps that often help resolve error 4000 in DISH Anywhere:

1. Check Your Internet Connection: Make sure your Windows device has a stable and strong internet connection. Error 4000 often relates to streaming problems caused by weak or interrupted connectivity.

2. Update or Restart the App: If you’re using the DISH Anywhere app, try closing it fully and reopening. If possible, update the app to the latest version to fix any known bugs.

3. Clear Browser Cache: Since you’re on WebKit browser on Windows 10, clearing your browser cache and cookies can sometimes fix streaming errors.

4. Log Out and Log Back In: Logging out from your DISH account on the app or website and then signing back in can refresh your session and resolve some errors.

5. Check for Service Outages: Visit www.mydish.com or the DISH support page to check if there’s a temporary service interruption affecting streaming.

If you’ve tried any of these already or if the error happens under specific conditions, let me know so I can assist you more precisely!

Would you like me to guide you step-by-step through any of these?