Hi! I see that your MWS app is showing a "connection failed" error. To help you better, could you tell me a bit more about when exactly you see this error? For example:
- Are you trying to open the app or connect to a specific service within it?
- Is this a first-time setup or did it work before and now it stopped?
- Are you on a stable internet connection?
- Do you see any other error details or codes along with "connection failed"?

In the meantime, let's start with some basic steps to resolve connection issues with MWS apps on Windows 10:

1. Check Internet Connection
Ensure your device has internet access using other apps or websites. Sometimes connection failures are simply network interruptions.

2. Verify Server Status
If MWS connects to a company server or cloud service, confirm that the server is online and reachable. You can try pinging the server address or checking with your IT team.

3. Restart the App and Device
Close MWS completely and reopen it. If the issue continues, try restarting your Windows 10 device. This refreshes networking services and clears temporary glitches.

4. Firewall and Antivirus Settings
Sometimes Windows Firewall or security software may block connections for specific apps. Check that MWS app is allowed through the firewall:
- Go to Windows Security > Firewall & network protection > Allow an app through firewall.
- Make sure MWS app is checked for both private and public networks.

5. Proxy or VPN Considerations
Are you using a VPN or proxy server? These can interfere with connections. Temporarily disable them and see if MWS connects.

If after these steps the connection still fails, the problem could be more specific like incorrect app server configuration, timeout settings, or naming/directory lookup errors seen in some MWS scenarios. In that case, you might want to check logs or error messages deeper to pinpoint the issue. There are mentions of errors like "javax.naming.NameNotFoundException" indicating lookup problems in some cases1 2.

Could you please share any error code or message details you get? Also, knowing your network setup or if this is related to a company server would help me guide you better.

Are you satisfied with the approach so far? If not, I can help dig further!