> For the complete documentation index, see [llms.txt](https://docs.parallels.com/landing/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.parallels.com/landing/parallels-desktop-developers-guide/software-development-specific-functions-of-parallels-desktop/simulating-adverse-network-connectivity-conditions.md).
# Simulating Adverse Network Connectivity Conditions
In software development, it may be beneficial to simulate various network conditions (low speeds, high packet loss, etc.) to see how your app behaves and eliminate potential sources of complaints. Parallels Desktop allows you to do just that by applying machine-specific connection profiles that mimic popular scenarios. To choose from a variety of preset options, do the following:
1. In Parallels Desktop Control Center, right-click on the required virtual machine and choose **Configure**.
2. Switch to the **Hardware** tab and choose **Network** from the list on the left.
3. Use the Profile drop-down menu to select one of the preset scenarios.
4. Alternatively, click on **Configure** to manually adjust speeds, pings, and packet loss percentages as required.
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