5 Mbps and 20 Mbps on wireless (802.11 N)??

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Principe1218

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Dec 24, 2012
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Ok so, I noticed this problem last Monday. I did a speed test on my Galaxy S3 and it showed I had 5 Mbps, which isn't true, I have 60 Mbps. So I decided to switch to my laptop, and to my surprise, it marked 20 Mbps. After that I went to my desktop, which is connected by wire, and a big relief came to me, it showed 60 Mbps. Now my issue is, Isn't 802.11N supposed to be 300 Mbps?

I have set both APs to Wireless N-only option, I am using WPA2-AES encryption, have frame burst enabled, channels are 6 (only AP using channel 6 all around my home), no power saving setting is enabled. I get the same issue with both, 2.4 GHz and 5 GHz.

I did try testing local connectivity between my phone and my laptop and the highest it got was 1.5 MB/s which is 13.6Mbps if I'm not mistaken, which is still not as fast as it should be.

I just want to know if this is normal, or not. If it's not what am I doing wrong. Or what should I do. Thanks for your help.
 
Solution
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You likely are getting interference from a neighbor even your own APs if they are on the same channel.

Now I will assume these are hard wired AP cabled back to the main router. If you are using any kind or repeater or wireless range extender these at the very minimum cut your speed in half and in most cases many times more.

I always say a wireless repeater should only be used when your only other option is no connection. Then any service you get is good because it is better than nothing.

First on the 2.4 band set all your ap and router to only use 20mhz channels and set them all to different channels...but only use 1,6 & 11. On the 5g band you also want to use different channels but you can use 40mhz there. Just be sure to use...
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laviniuc

laviniuc

Judicious
Nov 29, 2013
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it depends on a lot of things...

hardware:
-first, any obstacles between the ap and the laptop/phone (moved any furniture lately?)
-microwave ovens
-radio receivers
-cell phones, wireless mice/keyboards
-antenna on ap is loose/moved
-sometimes it helps to reset it from time to time (unplug power, leave 10-20 seconds, start again)

software:
-check logs on the router/ap
-wireless n can actually be draftN (150Mbps or 300Mbps), in most laptops and phones it's draft so even if your ap supports 300 the conection will still be 150mbps
-for android there's a wifi analyzer app that displays other wifi-s in the area that can interfere. install it and give it a try it helped me pick a better channel. (channel 6 is the number designation of the channel, it's not using 6 channels at the same time)
https://play.google.com/store/apps/details?id=com.farproc.wifi.analyzer&hl=en

I have rarely seen a draft N operating at more then 5-6MegaBytes / second and a full N at more then 10-15MB. Remember that 1MB (megabyte/second) is 8Mbps (megabits/second)

Encryption doesn't affect speeds to much.

If you are testing between your phone remember that you are cutting the speed in half, packets make 2 trips to the ap and back. you should test between the laptop/phone and a hardwired pc/device.
 
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Principe1218

Honorable
Dec 24, 2012
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10,510
The AP is in my room and I'm testing everything in front of it. Microwave Oven was off during the testing and I have no wireless mice or keyboards. I have Power Cycled it a few times.


Just tried to transfer from wired PC to phone, same speed. so it might be the Draft N, didn't know about that, and it does make sense. And yeah I know about the channel, it was a typo lol.
 
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laviniuc

laviniuc

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Nov 29, 2013
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Try to look in the resource monitor (task manager -> performance -> resource monitor) network tab for what may be eating at your bandwith just in case... but from personal experience between the laptop and phone those are not unusual speeds.

also the sd memory cards on phones are not particularly speedy...
 
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bill001g

Titan
Aug 9, 2012
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You likely are getting interference from a neighbor even your own APs if they are on the same channel.

Now I will assume these are hard wired AP cabled back to the main router. If you are using any kind or repeater or wireless range extender these at the very minimum cut your speed in half and in most cases many times more.

I always say a wireless repeater should only be used when your only other option is no connection. Then any service you get is good because it is better than nothing.

First on the 2.4 band set all your ap and router to only use 20mhz channels and set them all to different channels...but only use 1,6 & 11. On the 5g band you also want to use different channels but you can use 40mhz there. Just be sure to use 36, 44,52,60 or 149,157 if you live in the US.

On the 2.4 this will limit your speed to 54m rather than 150m unless you can get the 2x2 mimo which will double this. The biggest issue with running 40mhz channels is you increase your risk of interference because there is only room for 1 person to run a 40mhz non overlapping signal. So if your neighbors or your other AP use it everyone just stomps all over each other and nobody gets any speed.

On 5g if you do not have a lot of walls blocking your signal there is less interference so you can use the full 40mhz and get the speed. Unfortunately most people have walls that make the 5g signal too weak. Be careful to only use the channels I listed all other can randomly shut down if the router "thinks" it hears weather radar on a channel.
 
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