TD-4550DNWB / 4550DNWB(FC) FAQs & Troubleshooting TD-4550DNWB / 4550DNWB(FC) Not your product? Sort by Updated Date Popularity 1 Results 1. 10/22/2020 The WLAN icon appears on the LCD, but the printer cannot communicate with other devices via a wireless LAN. Connecting to a Mobile Device FAQs & Troubleshooting