Unfortunately no. The DGL series was based on a different chip set or I would have mentioned that already. If the same FW version too, try uploading v1.22 and see if that takes...do it with only 1 pc conneted. If it fails, then it needs to be RMAd or returned. Sorry this unit didn't work. Where did you get this unit from?
Only other thing you could try is the 30-30-30 reset. I don't think it will work though.