Hi there!
Do you happen to use software other than Windows own firewall? If so, please configure it to allow inbound traffic for port used by your application.
If that does not help, consider using machine name instead of IP in the URL, or hostname in the "machinename.local" format. For example, if machine name is "Daves_PC", hostname would be "Daves_PC.local".
Having said all this, this issue is not really UWS-specific. It's a general networking issue and you should be able to find the answer on the web even if this reply does not solve the problem.
Please let us know if you were able to resolve the problem.
Best regards,
UltiDev Team.
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