Showing posts with label wi-fi. Show all posts
Showing posts with label wi-fi. Show all posts

Monday, October 7, 2013

Two Wi-Fi Extenders. Edimax and ON Network impressions

Today's topic is Wi-Fi extenders.



I've spent the last few weeks trying to optimize my network in my new house. I have a few rooms wired but most of the house still requires Wi-Fi. Moreover, a few devices exclusively require Wi-Fi. With more than 8 IP cameras, a half dozen airplay speakers, and various mobile devices, the wireless network in my house is heavily congested. Hence, I looked into Wi-Fi extenders.

I ended up getting two wifi extenders to see if I could improve my network situation: An Edimax EW-7238RPD Universal Dual Band Wi-Fi Range Extender and







The Edimax is a dual band extender which works with both 2.4 and 5 GHZ bands whereas the ON Network N300 is strictly a 2.4 GHz extender. The N300 seems to be a rebadged Netgear WN3000RP.

Both are wall plug extenders. The ON Network N300 have two antennas and the performance shows. It has almost double the range of the Edimax. However, the Edimax has a nice feature: WPS push button configuration. WPS makes it easy to have it pair to your main router. For me, the WPS isn't a big selling feature. Both extenders have ethernet ports so you can connect lan line devices like an XBOX or NAS.

My main Wi-Fi Router is a TP-Link Archer C7 (AC1750) dual band 802.11AC Gigabit router. Overall, it is a very good router with excellent range and throughput.

As you can see (using various tools), the Archer C7 support 1300 Mbps (80MHz width) in 5GHz and 450 MBps (40MHz width) at 2.4 Ghz.



Neither of these extenders perform better than the TP-Link Archer C7.

The ON Network N300 tops out at 300 Mbps. The Edimax, to my surprise, only tops out at 150 Mbps yet it is rated at 300 Mbps. The Edimax's advertising is a bit deceiving and it is my fault for not reading the fine print. Edimax advertise the EW-7238RPD at 300 Mbps (when you account for both bands).

Taken from their product page. I feel a bit deceived that I am not getting 300 Mbps on a single band. I understand that I won't get the speed (450 Mbps) from my Archer C7 but 150 Mbps is cutting it low for a 802.11n device.



The actual speed of the Edimax is 150 Mbps. Hence, my dissapointment.



Performance.

So how do they perform? This is a bit hard to quantify and test. I have a three story house and my main router is in the middle floor. The basement houses the ON Network N300 and the top floor is handled by the Edimax. I tried various testing and various floors and at different ranges; behind walls and in adjoining rooms. The ON Network actually perform the best as I could easily get 60% signal from the farthest reach of my house.

Testing about 40 feet away, the N300 was giving a healthy 145 Mbps.





In the real world, using iperf, I was indeed seeing 7.5 Mbits/sec. This was good enough for one computer to stream 1080p content from youtube or Netflix.


Netflix requires 5-7 Mbps for 1080p streaming. Edimax struggled quite a bit.


I only tested the 5GHz channel of the Edimax as that is the justification for buying it. On 2.4 GHz, I was better off just using my router which has excellent range. The Edimax gave me an average throughput averaging 54. Mbps even at 5GHz at an average distance.




iperf showed a disappointing rate and I could see frames dropping while watching video.



It was only when I was right next to the Edimax that I got decent throughput of 150 Mbps.




Both extenders use standard web browser interfaces. There is really nothing to write home about. They both do the job. Both have easy WPS set-up.




Conclusion.

I would have to say the N300 is a better deal. Even though it doesn't support 5GHz, it was a better extender with far better range. Unfortunately, I could really do with out both of them. My TP-Link Archer C7 has a very good range. Instead of using wifi repeaters, I think I'll be better off hard wiring to ethernet to another Wi-Fi router running bridge mode. With extenders, you are effectively only getting half the throughput. It has to connect to the router wireless and it will compete with the other devices that are concurrently using the same spectrum as the source wi-fi.





Thursday, August 29, 2013

Edimax AC1200 USB 3.0 802.11ac Wi-Fi Dongle review for OS X

Do you have 802.11ac envy? I did and I cured it with a USB 3.0 dongle.  802.11ac is the next generation Wi-Fi and has been billed "Gigabit wireless" with speeds up to 500 Mbits/second or in short, around 62 MB/sec (theoretical). They claim it gets 867 Mbps (108 MB/sec) which is almost triple the 300 Mbps of 802.11n. However, in the real world, 500 Mbps is what you'll likely get.
The 802.11ac spec can be found on wikipedia.





Today, I am going to give you my short review of the Edimax AC1200. They claim it is the world's first USB 3.0  Wifi Dongle that supports 802.11AC. I don't know if that is true or not but they also noted they had OSX drivers so I decided to take it for a spin. It goes for $40 street price.

So if you are a USB 3.0 mac user who hasn't bought a new summer 2013 Haswell Macbook Air, this is the dongle for you.

I also recently upgraded to a TP-Link AC1750 (Archer C7) dual-band AC Wi-Fi Gigabit Router that supports the new 802.11AC standard. This would be a good test to see how the TP-Link router fares in "AC" mode.

First of all the build quality of the Edimax dongle is very cheap. I has a very flimsy build. Next, they did not supply a cap. This is something I don't want to throw in my backpack as I head out the door in the morning. Lastly, it is a rather bulky device. On either side of my Macbook Retina, it blocks either the HDMI or a Thunderbolt port. I figure this was designed more for stationary use than for mobile road warriors. The antenna flips our for reception but I didn't notice any gains with it open or closed.


Like many 3rd party Wi-Fi dongle for OSX, there is a separate application to control the Wi-Fi connection. It is not built into the OS and the OS merely sees it as another NIC. This basically means, you can't switch networks in the top menubar. Furthermore, in the past, most 3rd party Wi-Fi apps I've dealt with were buggy and problematic. The jury is still out on how the Edimax's implementation differs from others in the past. Time will tell if the drivers and apps will be continued to be fully supported.







As you can see below, I am running at 5GHZ channel and the Link speed is 867 Mbps (which is 802.11AC's spec)


The system profiler reports it as a USB 3.0 device that uses up the 5 Gb/sec bandwidth so everything looks good.



Now for the testing.

Connected to a standard Apple Airport (I believe it is a 2.4 GHZ 802.11g), I didn't see any real gains compared to the built in Wi-Fi on my 15 inch Macbook Pro Retina. I am running iperf to my Thinkpad which normally reports 112 MB/sec when connected to a gigabit switch.


I then took it home and tested it on my new TP-Link AC Wi-Fi router. I ran a few tests.

The first is in my basement of my 3 story house. This is where I would need the speed the most as it is farthest from Wi-Fi router. I ran two sets.

From the screenshot below, I ran the following: Edimax 802.11AC, the built in Macbook 802.11n Wifi, and the last is the Thunderbolt to Gigabit adapter.

The Edimax did so-so at 6.5 MB/sec. This was an improvement over internal which ran at 4.5 MB/second. Connected to a machine that is directly wired via CAT6 gigabit in the same basement room, the Thunderbolt gigabit dongle easily hits gigabit's theoretical ceiling at 112MB/sec.




It appears that 802.11AC suffers the same fate as 5GHZ 802.11n. Performance degrades when you are not in line-of-sight. I think I might be better off just getting a 802.11n 5GHZ repeater in the basement so all my portable devices benefit.

So,before returning this dongle, I took my Macbook Pro to the main floor where the router is and re-ran the test several times. I was able to hit over 50 MB/sec. Not quite "gigabit" speeds but clearly a strong showing. All devices will have some overhead and hitting 50 MB/sec is pretty impressive. The last 25 MB/sec reading was a test as I was on the stairs; walking down another floor. Impressive indeed.



Conclusion

Your results will definitely vary depending on many circumstances. You definitely need to re-invest in new routers that support 5GHZ 802.11AC. Using an old G/N router won't yield you any gains. Furthermore, 5GHZ vs 2.4GHZ has its pro and cons. 2.4GHZ is more heavily trafficked and congested but it does have better range. For example, on my third floor, it doesn't matter if I am running 2.4GHZ or 5GHZ. I don't know if I can recommend this product yet.

The jury is still out on reliability and long-term usage.  Customer reviews have been mixed. I'm personally used to wired Gigabit and where I need the speed the most (my basement), the dongle doesn't give me any significant gains for my uses. I'm impatient and when I need to copy large files over the network, I simply plug in wherever I have a wired port.



Links: Edimax Product page, Amazon Product page