Just installed a new DIR-857 and everything seems fine so far but was wondering about the Wireless 5g range. Overall the wireless on both 2.4/5g are about 20% better than my DGL-4500. But the 5g still is 20% less in range than the 2.4g just like my DGL-4500. For example, where I get 80% signal strength on 2.4g the same device will only get 60% on 5g. I thought 5g was suppose to be better. I've tried all the channels and they all are pretty much the same. I even mounted it on the wall where I had my DGL-4500. So is this normal?