The Gaming rules seems to work for all the games i've played using XBL. I play All Halo series, MW2 and Left4Dead. I have asked for more information for other non xbox console experiences since I don't own one. There was one other on here that mentioned that those settings worked for him on is PS console. I stream Netflix movies all the time with these settings.
The update FW feature on the 4500 seeks out what has been posted on the dlink web site and if they have enabled that feature from there side to be posted through there network to the 4500. They may not have it enabled. Most of us on here just downloaded the FW as a file and applied it manually. When using FW updates or making any changes to the router, make sure your logging in as ADMIN, not user.
I would run your unit as is and see how it work before updating. Nothing says you can't however as a rule, if it works, don't fix it. What version of FW is currently loaded?
If you chose to update FW, save off your configuration file before updating, that saves you from having to manually going back and reconfiguring the 4500 again. And when doing a FW update, the current configuration gets wiped out after you perform the update and then do a factory reset to ensure a clear clean slate to work with. After the reset, upload the config file and your off and running.
Always save ur config file. LOL
While using this router and game rules, it's not perfect and it won't be, it's as good as it can be, given the fact that other networks, traffic, and user interventions will show that any networking will introduce some lag. The only thing that I've noticed, and any one can do, if there adept enough with there networks and system is to make there systems as good and clean as they can get it. I've seen lag and other goofy things going on while gaming, doesn't mean I'm at fault, however doesn't meant there are other things to consider down the lines.
I've been using my 4500 for about 5 years now and enjoy it greatly for gaming and general internet usage. Ya, there have been some FW builds that aren't the best, however DLink and others on here have strived to help each other out and weed out the bugs and make the next FW builds better.
Hope this helps. Let us know if you need any more help.
DGL-4500 Gaming and Gamefuel for XBL.