Page Comparison

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1. Open System Preferences (should be located in the dock)
   
2. Select the Network service
3. Left column, select Ethernet (this is your wired connection)
   
4. Click the Advanced button located near the bottom
5. Select the Hardware tab
6. MAC address is presented (e.g. 40:6c:8f:50:b5:7776)
   

Note:  Perform the same operation for all Ethernet connections and Wi-Fi connections

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