HL-L3280CDW FAQs & Troubleshooting HL-L3280CDW Not your product? Sort by: Updated Date Popularity 2 Results 1. 11/29/2021 A security warning appears when accessing Web Based Management via HTTPS. 2. 11/29/2021 When accessing Web Based Management via HTTPS, I get a security warning that the connection is not private or that the site is not secure. Network Settings FAQs & Troubleshooting