---
title: Network Requirements
description: "## Bandwidth & Connection Requirements **Bandwidth :**2–3 Mbps is the minimum required for HD quality video, a minimum of 5 Mbps is recommended for smooth, uninterrupted playback. **Group usage** : Each additional device in a group adds only ~100 Kbps,…"
url: "https://videowindow.com/knowledge-base/network-and-security/network-requirements/"
updated: "2026-04-14"
category: Network and Security
---

# Network Requirements

## Bandwidth & Connection Requirements

**Bandwidth :**2–3 Mbps is the minimum required for HD quality video, a minimum of 5 Mbps is recommended for smooth, uninterrupted playback.
**Group usage** : Each additional device in a group adds only ~100 Kbps, so scaling has minimal impact on overall bandwidth.However, it is still recommended that at least a 10 Mbps connection be utilised for devices that are grouped with multiple Video Window instances.
**Connection type :** A wired (Ethernet) connection is strongly recommended over Wi-Fi to reduce latency, packet loss, and interference for a more stable experience.

## Firewall Settings

Ensure the following ports are open bidirectionally on any firewalls handling traffic for the involved devices (required for Video Window Media Server and Web Server communication):

| **Protocol/Port** | **Source** | **Destination** |
| --- | --- | --- |
| TCP 80 TCP 443 TCP 3478 TCP 4443 TCP 5222 TCP 5347 TCP 5349 UDP 3478 UDP 10000 UDP 49152-65535 | Video Window | 129.80.52.225 129.159.76.43 129.213.179.231 129.159.125.38 129.213.183.140 129.80.117.31 141.148.6.166 129.158.59.60 193.122.187.228 129.213.174.220 129.158.40.235 129.80.63.62 129.213.188.147 141.148.22.201 129.153.45.118 141.148.2.207 |