This is a brand new router right out of the box. It never worked with DST. I upgraded to FW 3.02 because tech support aked me to, but that made no difference. The check box for DST is simply being ignored. Tried different time zones and all fail to give me DST. No I did not do a factory reset because it came factory reset. I am using the Univ. of MN time server which I use for other software. I have Comcast cable Internet. I'd really like someone to actually look at this with their router, as it is either a design flaw or my router is bad, which I doubt. Go to Tools | Time and check the DST box and set your time server and reboot and see if it displays DST. The old DIR-655 I have has an offset box you can set, but this one does not.