HL-4050CDN FAQs & Troubleshooting HL-4050CDN Not your product? Sort by: Updated Date Popularity 3 Results 1. 03/22/2019 Protect your Brother machine against unauthorised access over the network 2. 07/23/2018 Use the Network Connection Repair Tool (Windows) 3. 12/28/2006 What is APIPA? Network Settings FAQs & Troubleshooting