HL-5140 FAQs & Troubleshooting HL-5140 Not your product? Sort by: Updated Date Popularity 3 Results 1. 24/09/2015 How do I change the print server password? 2. 15/07/2009 How do I factory reset the Network Interface Card (NIC)? 3. 05/01/2006 What is UPnP and SSDP? More FAQs Network Settings FAQs & Troubleshooting