TD-4550DNWB FAQs & Troubleshooting TD-4550DNWB Not your product? Sort by Updated Date Popularity 2 Results 1. 22/10/2020 The WLAN icon appears on the LCD, but the printer cannot communicate with other devices via a wireless LAN. 2. 01/03/2019 The printer does not enter the sleep mode when it is connected via a wireless LAN. Connecting to a Computer FAQs & Troubleshooting