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Item#: 9SIA0ZX2N61148

Linksys EA6400 Smart Wi-Fi Router - Dual Band AC 1600 Video Enthusiast IEEE 802.11ac, IEEE 802.11a/b/g/n

  • Dual Band N300 + AC1300
  • Approximately 3x speed of Wireless-N
  • Smart Wi-Fi Apps, tools and mobility
  • 1 USB 3.0 port
  • 4 Gigabit Ethernet ports
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Learn more about the Linksys EA6400

Quick Info


  • Limited Warranty period (parts): 1 year
  • Limited Warranty period (labor): 1 year

Customer Reviews of the Linksys EA6400

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  • Robin P.
  • 4/25/2015 10:03:44 AM
  • Tech Level: Average
  • Ownership: 1 month to 1 year

4 out of 5 eggsI like it

Pros: Easy to use, configure & setup.
Speeds are good on 2.5Ghz
I like how I can divide the download speed so I can stream a movie and download a large file without one interrupting the other.

Cons: None

Other Thoughts: My WDLive TV media player doesnt support 5Ghz.

My Cisco DocSis2.0 cable modem drops my internet connection about once every 2-4 weeks. I can see how someone can think its their router dropping the connection but the majority of the time its your cable modem or your ISP.

I did not have to create a linksys account as one reviewer had said. You simply login to the router like any other

I think this router offers a lot for the money. I'm not using all of it's features and could have purchased a router with less features and have been equally as happy. But I purchased this with longevity in mind, I hope not to replace it again for another 5-8yrs. I call it future proofing. :)

1 out of 1 people found this review helpful. Did you? Yes No

  • Michael C.
  • 3/23/2015 6:45:20 AM
  • Tech Level: Average
  • Ownership: 1 day to 1 week
  • Verified Owner

4 out of 5 eggsArrived

Pros: Easy setup, so far it works as advertized

Cons: none so far

Other Thoughts: Product came looking new but not in the original box. Had to factory reset because original password it should have been would not work. Otherwise all works as it should.

0 out of 1 people found this review helpful. Did you? Yes No

  • Anonymous
  • 12/13/2014 6:19:33 AM
  • Tech Level: High
  • Ownership: 1 month to 1 year

4 out of 5 eggsIt works

Pros: The firmware configuration is extremely well done I didn't have to change anything other than network names and tweaking required.

Cons: The biggest con is that it doesn't have an external antenna and therefore it's not going to have the best input and output over greater distances.

Other Thoughts: RE: the review of Edgar L. who wrote "I am an IT technician. I make 100% of my income from my IT consulting business. I have been doing this for over 15 years. I am not some idiot user"

Edgar the genius "IT technician" is 100% wrong in this comment: "one of the options to sign into the router requires you to SETUP AN ACCOUNT WITH LINKSYS???!?!?! ARE YOU FREAKING KIDDING ME?"

You ABSOLUTELY DO NOT have to create a linksys account to login the router. I DID NOT, although it seems like maybe you do, if you don't think a little bit.

3 out of 3 people found this review helpful. Did you? Yes No

  • Edwin V.
  • 9/3/2014 7:19:55 PM
  • Tech Level: High
  • Ownership: less than 1 day

1 out of 5 eggsWORST ROUTER EVER


Cons: FIRMWARE, everything else.

Other Thoughts: I am an IT technician. I make 100% of my income from my IT consulting business. I have been doing this for over 15 years. I am not some idiot user who throws up their hands at the first hint of a problem. I have setup and installed countless routers. Everything from Cisco (real Cisco, BTW) to the cheapest and worst D-Links. I have I have never run into anything as horrible as this router.

The firmware is absolutely horrible. Not surprisingly, I am not the only person who feels this way. Do a quick Google search to find out how much users like "Smart Wifi".

Linksys has done everything in their power to prevent you from simply accessing the router configuration page. One of the options to sign into the router requires you to SETUP AN ACCOUNT WITH LINKSYS???!?!?! ARE YOU FREAKING KIDDING ME? I just want to configure MY router. Well, just use the default password like their website says in the FAQ... Good luck with that... doesn't work.

I used to think that HP printers had the worst firmware developers in the industry. I was wrong. Somehow, through great effort and horrible decision making, Linksys has surpassed HP. Linksys needs to round up every developer who touched this firmware, every mid-level manager who supervised its development, and every executive who green lit "SmartWifi" and fire them. Not just fire them, blacklist them. Publish their names so that no one in their right mind would even think about hiring them.

I cannot stress this enough. This is the worst product I have ever had the misfortune of using. PLEASE choose something else.

2 out of 12 people found this review helpful. Did you? Yes No

  • Andrew H.
  • 7/17/2014 8:22:24 AM
  • Tech Level: Somewhat High
  • Ownership: 1 week to 1 month

3 out of 5 eggsNot as good as I hoped, but kept it

Pros: It works fine for 90% of the people who buy this. Didn't notice any speed issues.

Cons: It's not DD-WRT compatible, nor is it ever likely to be. Why is this an issue for me? I have 2 FTP servers that I like to access over the internet. No matter what I did, the firmware would not allow more than one FTP server to be accessible. I tried using different port forwarded ports, different IPs, and I even changed my NASs from a static IP outside of the DHCP pool to being inside the DHCP pool with a DHCP reservation. I simply could not access both FTP servers. Yes, I swapped their settings as well and I was able to access the other, so it's not a NAS issue. As I was able to do this quite painlessly on my old Netgear WNDR3700 with DD-WRT (which a storm killed), I suspected that it wasn't the hardware, but the firmware.

But with *VERY FEW* firmware updates available from Linksys (probably due to them being bought by Belkin from Cisco and they're favoring their own builds), while making the issue known to tech support with no answers to date, and their website forums being stumpped, I then made a similar mistake on purpose and bought an EA6500.

Why? Well, I knew there was definite DD-WRT builds for that one, but I wanted my question answered as to whether it was a firmware limitation or not. I set the EA6500 up the SAME WAY.... and got the same problem. After flashing it with a good DD-WRT firmware, I set it up similarly to my WNDR3700 and.... it worked! Both of my NASs are now available via FTP again.

Other Thoughts: I am keeping my EA6400 though as I believe I can still use it as a decent wireless bridge. Eventually I'll have time to set that up.

2 out of 3 people found this review helpful. Did you? Yes No

  • Lane S.
  • 12/24/2013 12:52:09 PM
  • Tech Level: High
  • Ownership: 1 month to 1 year

1 out of 5 eggsPoor performer, Terrible customer service.

Pros: Gigabit wired
AC wireless
USB3 port
lots of features

Cons: Unstable performance
Needed new firmware immediately
Requires periodic reboot
Linksys customer service is a joke

Other Thoughts: This router would NOT share out either of the drives I attempted with it, and one is specifically listed on Linksys's website. After troubleshooting via phone, Linksys agreed to RMA and then had no inventory to send as the replacement. So, now I'm stuck with a router that doesn't do what I needed. And they charged my credit card for the return before it even shipped. I'm not normally a big reviewer of products. This is not the first bad Linksys experience I've had, but it WILL be my last! Buy something else if you don't want to end up in my situation.

2 out of 3 people found this review helpful. Did you? Yes No

5 out of 5 eggsI really like this router

Pros: - Great range
- Slim, attractive design
- No drops or reset issues
- Slick UI
- App upgradable
- Guest WiFi zones
- Full AC speeds
- Configurable dashboard
- Easy parental controls
- NFC setup

Cons: - NAT loopback does not function
- UI sometimes lags at first load
- NFC card is easy to lose
- No availability of DDWRT or OpenWRT as yet
- Settings menu names are a little odd

Other Thoughts: I really liked this router. It felt like a slick upgrade and natural progression for linksys' offerings as of late. With four people using it on a number of devices I haven't had any noticeable slowdown or dropping of wifi devices, and it seems to perform fine on both 5ghz and standard 2.4ghz frequencies.

For those wondering about 5ghz, it enables higher speeds and in situations where there are lots of wifi networks (like dorm rooms of apartment buildings) then it helps alleviate congestion-related connection issues. In my 1k sqft apartment I had consistent coverage for the entire area with the router located in a far corner. For a larger house I would image it would need to be in a more central location if you want to use 5ghz.

It had an included guest network which sequesters visitors from your LAN, hiding your files and devices. It works well for random visitors, but you will probably want to give your friends full access.

The router has an NFC configuration card, and with some smartphones you can tap it to configure wifi access. I kind of wish it was both on the router and the card, since the card will be the first thing to get lost for sure.

The chassis is fairly durable, and it mounted smoothly on the wall. Some competitors have been taking the soda-bottle shape router approach which are a nightmare to wall mount, so this was a welcome relief.

The router includes an auto firmware updater, and when I first connected the router it notified me there was an update available. The firmware update process was the fastest I've ever seen, and was finished in just a few seconds.

Port forwarding and all other standard configuration options were easy to use and did not cause a loss of internet when applying the settings.

I was severely disappointed by the lack of function NAT loopback, which enables network resources to be accessed using the external IP/hostname. Hopefully this issue is resolved in future updates, as its absence in a router of this price is baffling.

I feel like this router would work well in homes and businesses, but the NAT loopback issue might give you pause. If that kind of thing doesn't bother you then this unit works great, I really like using this router.

3 out of 3 people found this review helpful. Did you? Yes No

4 out of 5 eggsGood, but a bit pricey

Pros: The setup program is quite easy, as it does all of the essential stuff for you automatically.

Range seems quite good. I took my laptop outside, quite far from the router, and sat there watching a two-hour movie on YouTube. ("The Outlaw", starring Jane Russell.) No dropouts or any other problems were encountered.

Sharing out a memory stick that I stuck into the USB port worked quite well. The stick was instantly recognized by the router, and after a minute or two for NETBIOS to do its thing, the stick was recognized by my laptop.

Cons: The setup program counts as both a "pro" and a "con". Yes, the program is easy to use, but if you choose the automated setup option, it makes choices for you without telling you what those choices are. I went back in afterwards to review the choices, and found that the "guest" account was turned on by default, that it was set to use either WPA or WPA2, and that router access was set to unencrypted "http" mode instead of encrypted "https" mode. Fixing those problems was easy enough, though.

The price does seem a bit high for what you get. Yeah, it's nice that it has Gigabit speeds, but I've recently seen another brand with 750Mbps speeds--almost as fast--for about half the price as this one. Also, the other brand had three USB ports, where this model only has one.

Other Thoughts: Overall, it's a good wireless router. But, the price may turn some folk off.

I'm taking off one star, only because of the price and the minor issues with the setup and some of the default security settings.

1 out of 1 people found this review helpful. Did you? Yes No

4 out of 5 eggsNice router

Pros: 1.) Easy to set up.

2.) Sweet looking.

3.) Media sharing.

In detail: I like the setup process. Easy like most Linksys devices. It has 802.11ac support which is awesome. It has built in gigabit connections for hard-wired devices. One USB 3.0 port for printing or usb storage devices as a network NAS type unit. One could use this for media sharing as well.

Speeds were great in the N range. In 2.4GHz it transferred 110-120 Mb/s (in the same room). Down the hall some it transferred about 50 Mb/s. In the 5GHz range it did around 140 Mb/s.

It has guest access and parental control!

Cons: Can't really say. Maybe the price is a little much. I agree with a previous reviewer that most people don't want to pay almost $200 for a router. ALTHOUGH you do get what you pay for most of the time.

The Linksys SimpleTap NFC thing didn't work for me on my phone. I installed the app and used the card to tap the phone. It just won't connect using this method.

Other Thoughts: The Linksys SimpleTap Technology is kind of a lame. You have to have the app installed for it to work on your device. I actually wasn't able to make mine even work.

I'm not very fond of Linksys new interfaces in their routers. I like the old school GUI like the ones on the WRT54G routers.

2 out of 2 people found this review helpful. Did you? Yes No

2 out of 5 eggsdecent router, top binned price

Pros: AC router...(but nothing close to it's purported spec)

Ability to toggle the port lights. This is an awesome ingenuity in my opinion. I've never seen it before, and it's a minor feature, but how awesome is it to be able to have that added functionality? To me it's an amazing function. If I want the lights (i do) I can have them. If I don't want the ethernet port lights, I can turn them off! Amazing!

Includes card to allow for NFC connection via NFC capable devices. In theory this is an awemazing feature...I can have my friends over and allow them to connect to my device via NFC w/out having to give them my network password, simply by having them wave their phone next to my 'login card' (simple tap). In reality...see below.

Firmware (f/w) updates are amazingly simple and handled as would be expected. They make it easy for users to update f/w rather than make it so hard that people don't feel comfortable updating f/w for the betterment of their devices.

It works...

----------after reading above, read the cons, then the other thoughts, then come back up to this, for the correct flow.

wow...i'm adding cons to my pros 3k limit. I used all 3k in the cons box and all 3k in the other thoughts (on more cons)...this is just horrible...

I apologize in advance for this not flowing correctly...
--additional cons--

The 2.4 ghz performance on this router was subpar by far. It connected to my laptop's agn 6200 nic from 3 ft, nothing in between the router and laptop at a max of 144 mbps, my phone (galaxy note 2) was 72 mbps max, my ac750 and ac1200 nics (maxes out at 300mbps on the 2.4 ghz N connection) maxed at 150mbps.

Every router I own that is wireless N capable, even one of the first wireless N routers (dgnd2000) connects higher than this router on some devices. The 2.4 ghz radio on this router is dismal at best.

--- Additional thoughts....

really consider other reviews on this product. I dont get how being standard and normal should count as PRO's? Comparing this router to an e2000 is like comparing a pile of dirt to a pile of gravel, when there are piles of diamonds available to purchase at less than the price of this pile of gravel. It doesn't compare to routers that are available for less...there is no reason to spend money on this router...absolutely no reason...

When your nic leaves the same room and enters an adjoining room and it goes from 'acceptable at best' levels to horrible connection levels, this is not a pro.

Realistically there are very few reasons to consider this router (attempting to give any reasons...). If you've got money to spend on the ability to turn off port lights and/or use NFC to connect to the router (as if it's easier than wps) or that is a really significant desire, by all means try this router...otherwise look at lower price points for higher featured routers.

Cons: There are a number of cons...way more than should be seen on a top tiered device...

After installing the router & connecting to the network, I was forced to run their smart wifi setup. In any other router (netgear, belkin, dlink, etc) once you get internet access you can access the internet via the connection to the router. In this router, you can not access the internet until you setup the router. Goes from needing 1-2 minutes from turning on to internet in normal settings to 10 minutes from turning on to internet in this router.

I attempted to connect with my Samsung Galaxy Note 2 first. When doing so I connected, opened the internet browser, got to a setup page on the 'Smart Wifi' setup and could not do anything. There was merely a 'next' button, but it was greyed out and I could not do anything. I was forced to close the browser and open a new browser, it gave me a page saying that I needed to upgrade the router's f/w and I did.

After the f/w update, the router rebooted and I was left with a browser page that stated I was 'almost there' and froze there for at least 5 minutes. I closed out of the stock browser again and started it up again. This allowed me access to the internet.

On another con - the NFC connection was cool and all, but honestly it was quicker to just type in the key than to utilize it. In reality I had to open google play, search for Linksys Smart Wifi, install the app, then open the app, and cut on my NFC (it's not something I use often, so I normally leave it off), and then use the NFC card to connect to the router. It actually took longer to do that then to just connect. Then once you connect, as long as you leave the settings on your phone, you dont need to remember the password anymore, so you just connect when within range. It really is one of those, cool 'Star Wars' type things that really means jack nothing in real life.

2.4 ghz connections...Wow! The 2.4 ghz side of this router was akin to routers I bought 4 years ago. Seriously, I can get better 2.4 ghz performance from my Netgear dgnd2000 router. For anyone that doesn't understand that...the normal N performance is horrible. See below for specs...

After trying to set this router up on my cell phone was seemingly unsuccessful, I tried to utilize my laptop. I connected & opened the internet browser, it stated that 'the router was not setup correctly'. It required that I reset the router & then try again. I did, and determined that the cell phone setup failed while trying to reconnect after the f/w update. It did not allow the ssid/password setup for the network connection. It also failed to allow me to setup the admin password.

I completed this on the laptop and was able to get into the router's admin functionality.

The changes in the UI were horrible & I dreaded changes. Simple changes like changing the SSID on the 5ghz network were overly laborious and unnecessary. After changing the SSID name, it took 1.5 minutes.

Other Thoughts: Additional Cons. (this is the first time i've ever had to extend beyond 3000 characters in the cons section on any device...even devices i've rated as 1 star!!!)

After making changes to the 5ghz SSID, it rebooted the router & made me reconnect. After doing so...wait...

That is another horrible con...This router names the 2.4 ghz and the 5 ghz SSID the exact same SSID. Everyone knows that this is a limitation that can not be changed. You can not use the same SSID and expect to connect to both the 2.4 ghz network and the 5ghz network. This means that effectively, out the box you are completely unable to use the 5ghz network w/out manual interjection.

So after the reconnect, I was still in the router's admin GUI, I tried to change some settings on the WPS and simpletap. These changes left me in an endless loop of apply changes, click off tab, states need to save changes, if i clicked yes, it would leave the pop up, but not the tab, then require me to click off the tab again. If I clicked no, it'd allow me to leave, but not save changes, same thing with cancel. What I found was that I was never back into the router's admin pages, I was looking at what was the exact router settings, but not logged into the admin GUI, due to having rebooted the router, but not logged back in...horrible GUI functionality and security (which is deplorable for a brand that touts itself as having the #1 security in the business). How can I view all the router's settings w/out actually being logged in as the admin???


Cutting off wps took 25 seconds.
Cutting off simpletap required a rebot and over 95 seconds.
16 seconds of lag to access a video over the USB share.
3 seconds of lag to access a picture via USB share.


Some benchmarks...

I tested this against a Netgear R6300, D-Link DIR-868L, and Netgear DGND4000 routers. With two different AC NIC's (Network Interface Cards) and entry level Netgear NIC and a D-Link DWA-182 NIC. The Netgear is an AC750 NIC and the D-Link AC1200.

This router...

351 mbps connection speed 80% link and signal strength 5ghz on the dlink nic
130-195 mbps connection 90% link & signal strength 5ghz on the netgear nic

Dlink router
585 mbps connection speed 90% link and signal strength 5ghz on the dlink nic
390 mbps connection 100% link & signal strength 5ghz on the netgear nic

r6300 router
351 mbps connection speed 100% link & signal 5ghz on the dlink nic
260-325 mbps and 100% link & signal 5ghz on the netgear nic

These tests were from 30 straight linear feet, nothing to impede the signal. I did test the router to the NIC's from about 3 feet, same room as the router and got...780 mbps on the D-Link.

This brings me to another con. If the D-Link is capable of AC1200, you'd think it could connect up to 900mbps on AC, if this router is an "AC1600" router, it should be able to attain 900mbps. However, from 3 feet away, nothing in between the router and the laptop, it can hit a

4 out of 5 people found this review helpful. Did you? Yes No

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Item#: 9SIA0ZX2N61148
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