Spoil your network with Clumsy
If you are looking for a program that will help you test your app or service on an unstable network connection, why not use the utility Clumsy?
The app enables you to make the network condition worse via the functions. To be more precise, you can hold the packets for a short while, randomly discard, block traffic for a given time frame, re-arrange them, nudge parts of their content or send cloned packets right after the original one.
The program comes with a user-friendly interface that displays the types of packages that you would like to capture. Consequentially you can choose between both inbound or outbound, TCP or UDP, IP or socket port or a combination of them.