QL-820NWB FAQs & Troubleshooting QL-820NWB Not your product? Sort by Updated Date Popularity 2 Results 1. 28/11/2022 I cannot connect my printer to the wireless network with WPS when using WPA3. 2. 22/10/2020 Wi-Fi® LED is lit in blue (QL-810W) or WLAN icon appears on the LCD (QL-820NWB) but the printer cannot communicate with other devices via Wi-Fi. Connecting to a Computer FAQs & Troubleshooting