I am unable to check firmware version as my modem is not getting connected to LAN as well. But the hardware is V4 and the device I have purchased on 21-09-2015 so I guess it should have latest...

Model : Hardware Version : Not Clear Firmware Version : ISP : I am using TD-W8968 since last 2 months. It was working properly but suddenly stopped working since last 2 days. Only Power LED is green...