Flashed OpenWrt onto DWR-9121 (C3) - no internet connectivity? - Installing and Using OpenWrt - OpenWrt Forum
D-Link
DWR-920 Wireless N300 4G LTE Router | D-Link
User manual D-Link DWR-921 (English - 106 pages)
D-Link DWR-953V2 LTE Cat4 Wi-Fi AC1200 Router, Fast 4G Download Up to 150 Mbps, AC1200 Wi-Fi, 4 x Gigabit Port, Gigabit Internet Port, External Antennas, Unlocked for All Networks : Amazon.co.uk: Computers