Wireless N LAN speed only at 54 mbps!!

So I have a wireless N router with my SXPS 16 which has the Intel Centrino Advanced 6200N

However, I only get 54 mbps link speed as opposed to 300 mbps that I supposed to get for my LAN transfer with wireless N.

Has anyone else experienced this problem or have a solution to it? It might be a driver issue although I have the latest drivers installed...

 

Im experiencing this issue right now. I just moved and they had to switch my modems. Its the exact same modem i set it up exactly the same way but this time it connects at 11 mbps - 54 mbps. Before on the old modem it connected fine 200 - 300 mbps. I would really appreciate if someone could pipe in.

For reference my modem/router is an SMCD3GN Docsis 3.0 cable modem/ Dual Band Gateway. With Rogers in Ontario , Canada

 

Hey, I have the exact same modem and service that I'm experiencing this issue with. I asked Rogers but they said this is probably the laptop's issue and not theirs.

 

It is defiantly the modem. I had the exact same modem at my old house yesterday but they had to change it due to provisioning in my new area. Now i cant get above 54mbps. I tried the new drivers from Intel's website but that didn't help. And while its at 54 mbps or lower i can only get up to 17 mbits / 25 mbits on wireless.

 

have u guys checked your wireless security settings yet? full N speeds can only be achieved if your channel is using WPA2-PSK [AES] encryption. good luck!

i had a similar problem when i first installed my new netgear WNDR3700 about 2 months ago.

another thing to check is to go into your network cards settings and make sure it is broadcasting at max strengths/speeds.

 

Your solution to set the encryption to WPA2 worked! I was able to get around 144 mbps, but it's still half of the max capability of the card... any other ideas on how to increase the speed even more? BTW, the card settings are on highest.

 

Did not work for me. Mine keeps jumping from literally 1 mbps - 108mbps. So you increased it a little but its not stable and not high

 

have you set the encryption to precisely WPA2-PSK and cipher type to AES?

 

Yep i changed it from TKIP to AES. Then when that didn't work i reset my modem to factory settings now im getting 84 - 168. Still no where near the 250 i was getting at my old place

 

I think I found the problem,

Go in Device Manager --> Go in the properties of the wireless card --> Select the advanced tab --> Change the value of "802.11n Channel Width for band 2.4" to Auto (Do the same for the band 5.2).

Now my link speed is 270 mbps and goes up to 300 mbps occasionally!!!

 

Good to know that worked! Thanks for sharing.

 

Mine was set to that by default. No change

 

was having this issue after an OS re- install (the 6th on my system) i was connecting at a steady 144mps. i knew this had some thing to do with settings since i was connected @ 300mps all the previous times. i found that in device manager under the "advanced" tab, the is a selection for "802.11n channel width for 2.4ghz" and it let me selected 20mhz or auto, the default was 20mhz (which is half of the max 40hz) after switching to auto it reverted back to 300mps. this would work for routers that have a selectable output of 2o or 4o mhz. just an FYI to anyone who runs into this issue.

 

Another factor that is going to affect actual speeds is going to be, depending on the quality of the router, how far the laptop is from the router.

I have my router and network adapter settings set as described in other posts in this thread. If I have the laptop a few feet from the router with those setting, I can get a consistent 300 Mbps, but, as I move the laptop further away from the router, there is a drop in the speeds. At about 50 feet from the router, I'm typically getting speeds of 240 Mbps, but they can vary between about 180 and 270 Mbps and only occasionally hit 300 Mbps. I would expect that, with a higher end router, my speeds would be holding up better at greater distances. For those still having trouble getting higher speeds, you might want to test to see what the speeds are when you take the laptop and position within a few feet of the router.

 

Brendan, how is your wireless signal strength. Is it at full?

 

Yea turns out it was my router not having enough strength to reach the distance. I got a Linksys 400n with 5ghz channel and i am mostly at 300 mbits all the time

 

For anyone who is still searching for ways to maximize the rate of wireless throughput, I've been doing some experimenting during the last couple of days, and what I've discovered is that the the wireless N speeds can vary quite a bit and are influenced by a number of factors.

1. First, the quality of the router can make a big difference. With a Linksys E1000, I can hit 300 Mbps consistently only if the laptop is within a few feet of the router. At a distance of about 50 feet, typical speeds drop significantly. With a Linksys E3000, even at 50 feet away from the router and separated by several walls, speeds are generally between 270 and 300 Mbps, and are most often right at 300 Mbps. I'm guessing that the improved speeds with the E3000 are the result of both a stronger signal and also because the E3000 is capable of using the 5 GHz band.

2. I discovered, also, that another important factor is the quality of the power to the router. With the E3000, if I have the router plugged directly into the wall or into a high quality UPS, I'll get those 270-300 Mbps speeds at 50 feet consistently, but, if I have it plugged into an older surge protector, typical speeds at 50 feet will drop to the 180-240 Mbps range. I'm assuming that the quality of that power with the surge protector is not as good as it should be.

3. As previously discussed in this thread, optimizing settings on both the router and the laptop are important. Both need to be set to enable use of both the 20 and 40 MHz channel width to maximize the wireless speeds.

So, if the wireless speeds are lower than expected, there are a number of things that can be investigated.

 

5 ghz vs 2.4 ghz range would only eliminate interference from other wireless devices. That's just the size of the radio wave - the medium is still the same air / walls. Secondly electricity is measured in voltage and amperage, there is no other "quality" to it. How much is drawn depends on the device not the wiring. A 40 amp device will still draw 40 amps even through wiring sized for 10 amps, it's just going to melt the wires.

 

I know and there are 4 other laptops in the house and the 5ghz channel is reserved for my 1645. It defiantly helps but i also had to move my router away from the tap of the house because the electrical panel was interfering with the router.

 

I may not have my terminology right with using the word "quality", but I am confident of the concept I was explaining. With an older power strip or surge protector, not only do I not get the same wireless speeds that I get with the router plugged into the wall or into a higher quality UPS, but, if I plug my i7 desktop computer into either that same surge protector or a cheap power strip, I won't get the benefit of the turbo boost from the processor. Also, a year ago, when one of my DirecTV DVRs was locking up and rebooting on its own and DirecTV support asked if I had it plugged into an older surge protector, I was skeptical, but, as soon as switched the power source from the older surge protector, the problem went away. So, whether you want to use some term other than "quality", I'll stick with what I said about the power source having an effect on my wireless speeds.

Similarly, I can't tell you the difference between how the 5Ghz and 2.4GHz ranges work, but I can say with certainty that, if I disable the 5GHz range, my speeds go down. And, like with the power, I'll stick with saying that the quality of the router can make a significant difference in what speeds you are getting and at what distances from the router you will be getting those speeds. If you want to use different/more accurate terms to describe what is going on, that is fine, but denying the effects of these factors on speeds is disagreeing just to be disagreeable.

 

5ghz = Great if your really close to router. Otherwise the range sucks