No you cannot do that as the V4 is a newer version of the WR1043ND series and will work correctly with firmware from an older version.

Model : Hardware Version : Firmware Version : ISP : Hi all, Yes i know that this is unusual to use a modem as a switch but i changed from dsl isp to cable isp and therefore i cannot use the W8970 as...

The cable is not a problem, it's a straight utp cable, i tested it with a lan cable tester and the lights light up in the good order, but here is a funny thing, i have tried to use a powerline...

Model : Hardware Version : Firmware Version : ISP : Hi all, I bought the TD-W8970 V3 and when i connect a lan cable from my laptop, it's connecting and disconnecting and so on, so i tried it between...