A firmware flash will reboot the router. Do not do this over a weak WiFi connection. Use an Ethernet cable to avoid a "bricked" device.
Multiple stack-based overflows have been discovered in the Port Forwarding, Advanced Firewall, and VPN configuration endpoints of version 1.01.07. (Non-US) DWR-M960 : H/W Rev. Ax :: F/W v1.1.49 - D-Link Dwr-m960 Firmware
The DWR-M960 firmware comes with a range of features that make it a robust and reliable wireless router. Some of its key features include: A firmware flash will reboot the router