# How to add a user’s device to a network  
In order to add a device to the network you would need to use the device’s MAC address
The process for find the MAC addresss differs between the various operating systems.


## How to find the Mac address for the various Operating systems
### Finding your Mac address - IOS 
1. Open the Settings app
2. Select General
3. Select About
4. Scroll down and note Wi-Fi Address
5. The Wi-Fi address is your Mac address 

### Finding your Mac address - Android
1. Open the Settings App
2. Select Wi-Fi
3. Select the Menu icon and choose Advanced
4. Note the MAC address

### Finding your Mac address - Mac
1. Open System Preferences from the Apple menu
2. Select Network
3. Select Airport from the sidebar, then Advanced
4. Select the Airport tab, note the Airport ID
5. The Airport ID is your Mac address 

### Finding your Mac address - Windows
1. Hold down the Windows key and 'R' simultaneously
2. Enter cmd.exe
3. Enter ipconfig/all
4. Scroll up to find the Wireless LAN adapter section
5. Note the Physical Address
6. The Physical Address is your Mac address

### How to connect using the Mac address 
1. Obtain the MAC Address: Locate the MAC address of the device you want to add to the network. You can usually find it in the device's network settings or on a label/sticker on the device itself.
2. Access the Router's Web Interface: Open a web browser on a device that is already connected to the Synology router's network. Enter the router's IP address (e.g., 192.168.1.1) in the address bar and press Enter to access the router's web Interface
3. Login to the Router: Enter your administrator username and password to log in to the router's web interface. If you haven't changed the default credentials, check the router or its user manual for the default login information.
4. Navigate to MAC Filter Settings: Once logged in, locate the "MAC Filter" or "Wireless MAC Filter" option. It is typically found under the "Wireless" or "Network" settings section, but the exact location may vary depending on your router model and firmware version.
5. Add Device to MAC Filter: In the MAC filter settings, look for an option to add a new MAC address or device. Enter the MAC address of the device you want to add to the network. Specify the appropriate filtering mode (e.g., allow or deny) for the device's MAC address.
6. Save the Settings: Once you have added the device's MAC address to the MAC filter list and specified the filtering mode, click on the "Save" or "Apply" button to save the MAC filter settings.
7. Connect the Device: Connect the device you want to add to the network to the Synology router. Use an Ethernet cable or connect to the router's wireless network, depending on the device's capabilities.
8. Verify Network Connectivity: Once connected, check if the device has successfully obtained an IP address from the router and can access the internet or other devices on the network. Ensure that the device is functioning properly on the network.
9. Test the Connection: Test the network connection on the added device to ensure it can access the internet and other network resources as intended. Verify that the device can communicate with other devices on the network.
