My 4500 is near my 6180 as of last night when I put it online. I was going to take it off line however seeing the GF isn't capping my 3Mb Uplink and seems to be working well, it's not my main host router.
![Grin ;D](http://forums.dlink.com/Smileys/default/grin.gif)
I'm going to play around with this weekend.
The only thing I did was disabled DNS Relay, SPI, Wireless, Advanced DNS Services and I can't remember if I disabled Use Unicasting or not. I'll recheck.
After making those initial speeds tests, I enabled GF. I forgot to disable Dynamic Fragmentation as it's not needed over ISP speeds 1-2Mb so I'll check that again this evening. I was kind of in a rush last nite as dinner was approaching so I couldn't take my time like I wanted to. I set up two rules, 1 for XboxLive and one for ALLOther Devices. I tested with my Mac Book Pro in the ALL Other devices and saw a small drop in speeds however not sure if there was other traffic at the testing site or what. I need to check on this more, however the rule is set for 128 which is normal mode so a small drop in speed should be expected. I checked speeds on XB1 and it was near to ISP spec. We played Halo 5 campaign flawlessly last nite. Will be doing some CoD MWR this weekend since it's releasing Friday. That should show us how well the 4500 does. We'll see.
![Grin ;D](http://forums.dlink.com/Smileys/default/grin.gif)
No point in calling ISP for help, they'll just tell you to test with out the router, which you have and it shows there's a problem with the 4500. I presume it's a speed limitation of the 4500 and your ISP speed seems to exceed being at 400Mb. Must be nice.
![Shocked :o](http://forums.dlink.com/Smileys/default/shocked.gif)
Know any friends, neighbors or family members with lower ISP speeds? You might test it out there. We know from what my 4500 does on 100/3 works so there's a base line. Next step would be 200Mb. Also there could be some incompatibility with the ISP modem as well. Thought doubtful.
I think mines an A2 however I'll look again as I do have both A1 and A2 models.
![Roll Eyes ::)](http://forums.dlink.com/Smileys/default/rolleyes.gif)
If you get another router, you could set up the 4500 as a wired AP then connect a wired PC to the back of the 4500 and test speeds again. This may show differences between router mode and AP mode and the speed limitation on the WAN side.
![Huh ???](http://forums.dlink.com/Smileys/default/huh.gif)
Check out a DIR-880L or 890L routers as a suggestion. These have the new UI look and feel. The last released router with the older UI is the DIR-866L.
![Wink ;)](http://forums.dlink.com/Smileys/default/wink.gif)