Devices are missing after Scan Network

[GoogleCodeExporter]

What steps will reproduce the problem?
1. Enable advanced mode
2. Scan Network

What is the expected output? What do you see instead?
All Devices should be shown, instead only a few devices are shown. Maybe the 
latency is too high. Sometimes it works with Android Devices, sometimes it 
doesn't show them up. They often have a latency over 100ms on the first ping...


What version of the product are you using? On what operating system?
0.9.4 on windows 8.1

Please provide any additional information below.

Original issue reported on code.google.com by [email protected] on 20 Jul 2014 at 10:32