There are two types of NVRs - PoE NVRs, and Wireless NVRs. If you’re concerned about whether or not your Wi-Fi NVR will be stable, here is the answer. If you have multiple devices connected to the Wi-Fi network, you are susceptible to poor performance. You can easily solve this problem by upgrading to higher latency and bandwidth or by switching to a wired NVR with ethernet cables.