Like every other website on the planet, SmallNetBuilder uses cookies. Our cookies track login status, but we only allow admins to log in anyway, so those don't apply to you. Any other cookies you pick up during your visit come from advertisers, which we don't control.
If you continue to use the site, you agree to tolerate our use of cookies. Thank you!

Router Charts

Click for Router Charts

Router Ranker

Click for Router Ranker

NAS Charts

Click for NAS Charts

NAS Ranker

Click for NAS Ranker

More Tools

Click for More Tools

Wireless Reviews


The R6400 runs the Genie OS found across NETGEAR's wireless router family. Features include OpenDNS based parental controls, four-level priority based up and downlink (internet) QoS and OpenVPN VPN support.

NETGEAR R6400 Home Page

NETGEAR R6400 Home Page

A quick run through the admin screens uncovered a new VLAN/Bridge Settings option. The composite image created below shows both bridge and VLAN options activated; in actual operation you must choose one or the other.

NETGEAR R6400 VLAN / Bridge settings

NETGEAR R6400 VLAN / Bridge settings

Both features appear to support WAN connection requirements of some ISPs. Here's a Help file excerpt describing what they do.

VLAN / Bridge Settings Help

Some Internet Service Providers (ISPs) require routers to send or receive virtual LAN packets for Internet connection. This requirement is common for fiber access.

Some IPTVs cannot work behind a wireless router's network address translation (NAT) firewall. You can create a network by bridging the IPTV port to Internet port without NAT.

Packets between ports in Internet group and Internet port are processed via NAT and firewall. Packets between ports in user defined VLAN tag group and Internet port are processed by bridge without NAT and firewall.

I've included a few other admin screens in the gallery.

Routing Performance

Updated 2/25/16 - Router performance retest due to measurement process error

Table 2 summarizes the routing performance of the R6400 plus the original R6300 and R6300V2. Comparing the R6400 and R6300v2, the R6400 is slightly better LAN - WAN, and the R6400 better WAN - LAN. The 6300v2 and 6400 both exceeded the 30,000 simultaneous connection point beyond which we rank all products equally.

Test Description R6400 R6300 v2 R6300
WAN - LAN (Mbps) 710 806 783
LAN - WAN (Mbps) 789 753 829
Total Simultaneous (Mbps) 1207 1228 808
Maximum Simultaneous Connections 36,261 30,099 4096
Firmware Version V1.0.0.24_1.0.13 V1.0.3.8_1.0.60 V1.0.0.68_1.0.16
Table 2: Routing throughput

The IxChariot composite plot for unidirectional up and downlink tests show average uplink about 10% higher than downlink, with both plots showing the cyclical variation common in this test.

NETGEAR R6400 routing unidirectional throughput

NETGEAR R6400 routing unidirectional throughput

The simultaneous up and downlink test shows average LAN - WAN over 200 Mbps higher than WAN - LAN. Both directions are relatively well-behaved, mirroring each other as throughput changes.

NETGEAR R6400 routing bidirectional throughput

NETGEAR R6400 routing bidirectional throughput

Storage Performance

The Router Charts contain benchmarks for FAT32 and NTFS volume formats with USB 2.0 and 3.0 connections (as applicable). But since we know USB 2.0 is slower and FAT32 has volume and file size limitations, we'll focus on comparing NTFS format with USB 3.0 connection performance.

The charts below show only AC1750 class routers. The R6300v2 and R6400 are essentially the same for write at 23 and 24 MB/s respectively, but the R6400's 42 MB/s read is significantly improved from the R6300v2's 26 MB/s and tops that benchmark chart for its class.

AC1750 class router storage throughput - NTFS & USB 3.0

AC1750 class router storage throughput - NTFS & USB 3.0

More Wireless

Wi-Fi System Tools
Check out our Wi-Fi System Charts, Ranker and Finder!

Support Us!

If you like what we do and want to thank us, just buy something on Amazon. We'll get a small commission on anything you buy. Thanks!

Over In The Forums

So asus updated the ac1900p to newer firmware which I returned prior to purchasing my ac86u. Why is asus slow in updating their newer models? It seems...
I know many electronics producers have "official outlets" for their refurb and old stock products.In the past newegg would carry a number of refurb AS...
Hi guys, guru, network and problem-solving lovers!I am requesting your help and wisdom here I know this question is mostly about topology but my devic...
I thought there was a way to limit the time on certain devices accessing certain thingslike YouTube but I can't find anything atm...i have an Ax88u ru...
- Improve stability.- Fixed some internet disconnect issues.

Don't Miss These

  • 1
  • 2
  • 3