Dear all,

This week I found out my Unifi getting slow, troubleshoot it tonight and find out only happened to all wireless device.

1) Did speedtest.net on my laptop by using Lan cable, 30mbps result.
2) Did speedtest.net with my laptop via wireless, get 3-10mbps. Btw I disconnect all wireless device and make sure only my laptop connected.
3) Did speedtest.net with my various models of mobile phone devices, same 3-10mbps. Same method, only one device connected to the network.
4) All test above I verified via router, no other network devices connected to the network only test device (Mobile phone / laptop)

Any issue with my router with the wireless, configuration never changed before this.

Thanks in advance for comments and suggestions,

My wireless setting.

try change channel, i got same problem, it's solved

If changing channel doesn't help much (like in my case, only improve a little), then it's time to consider using LAN cable or HomePlug technology at least on your wired devices such as laptops.

This is the problem with more capacity or speed. You have 802.11BGN

With 802.11BG, your AP will have 22MHz bandwidth channel. Therefore you have 14 channels (USA has only 11 channels due to smaller frequency allocation). However, there are only 3 non-overlapping channels
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The 802.11N is using 40MHz bandwidth for it max speed. Therefore it actually can have 1 channel. This is why manufacturer concentrate more the 802.11n for the 5GHz wireless which has wider band than the 2.4GHz. The problem is many devices only operates in 2.4GHz band only.

If your neighbor is using 802.11N also, you cannot avoid interference with your channel. Yes, your signal is stronger but no way you can avoid interference. With interference, you have more error during transmission, thus your AP might switch to smaller band and lower speed and keep gong down if more error encountered at threshold setting.

I believe this is you main problem. You can use your phone and install apps that can scan the spectrum to confirm this. The best perhaps move to 5GHz band where there is less interference. I believe many laptop nowadays support this but not the lower end mobile devices like smartphone, unfortunately

Maybe can shield the house from external interference

for stock router i choose channel 1 and the speed max i can get 28mbps.

but on 2nd floor max around 16-18 mbps only.

Purchase a better router with better wireless. The speed drop when the signal strength drops as well.

Try changing channel 6 or 11

and change band width to 20Mhz...

Consider to change to a better router.

U using TM's wifi router? If yes, get a better router such as

https://www.asus.com/Networking/RTN12HP/

Hi all,

Thanks for your reply, I am using Unifi stock RG router for the upper floor with Hypptv.
One of the LAN port connected to Homeplug to supply network downstair (Asus RT-N12).
Both router using different SSID.

My troubleshoot via both router, but of course the test mostly connected to Unifi RG router upstair.
Connection really low, never try my Asus RT-N12 to configure as main Unifi router. Afraid the Hypptv not working.

For this issue, I am trying to troubleshoot and fix on my Unifi RG router instead of my Asus RT since the Asus just a secondary AP (Not repeater - If repeater yeah lost so many bandwidth). That's why using homeplug to extend my connection.

Thanks again, btw the problem now is solved without any configuration done . Unfortunately, the 28 - 32 mbps intermittent back to 3-10mbps .

try this

http://www.techspot.com/downloads/5936-inssider.html

I had the same issue. upgrade from 10mbps to 30mbps. Previous 10mbps was consistently getting 9-10mbps. Which is good.

With the newly upgraded 30mbps, I got 18-22mbps wifi.
Remembered that a friend said he got 18mbps with wifi, but with wired LAN, he can get 30mbps consistently.
I tried mine with LAN cable too, it worked! ... getting 31mbps consistently. Lucky!
*Tested on both Unifi Speedtest and Speedtest.net

Now I'm wondering what should I do to get at least 27mbps++ on wifi .... rather lazy to change the wifi router.

here's my pics :

wifi router and modem (nothing changed since my 5mbps --> 10mbps --> 30mbps) :


On LAN cable :


On wifi :

now scouting for affordable wifi router ... any suggestions?

This post has been edited by mmohdnor: Feb 4 2016, 10:13 AM

If your're using Asus router, check whether settings on max upload/download speed has been adjusted accordingly.

It should be in your router settings page, under "Traffic Manager" if I'm not mistaken.

FYI, i having the same issue speedtest on wifi 5-13mbps...

use wifi analyser (android download), check which channel is best for your area.

mine N Only, 20Mh chn 6, i manage to get 28++ for my iphone speedtest, than i test my laptop, still same, suspect laptop wifi card problem, swap the card with newer card, i get 34mbps download and 6mbps upload speed now...

oh ya... if possible just get a L7NR2000 router la, abit old model but for me it not bad la... at least the latency when high transfer rate still maintain 1ms-4ms, innatech RG4332 suck big time, sometime go til 1k of latency.

buy own wifi router la.. dont rely on TM's lousy router.

Hi all,

I have same issue with TS. But after I changed the stock router to Asus RT-N12HP. Everything is fine until last week. I thought is unifi issue, so I checked with them , LAN is no issue but when connect via wireless, the speed that I get only 1mpbs~3mpbs for upload and download speed.And also it very unstable. So I went to the seller that I bought the router , the seller checked and agree to change a new router to me. After I setup the new router, the issue still persist. Any idea is whether the router or unifi issue??? But I change back the stock router, the speed is better than Asus router.

do you have an Android phone ? if yes then download Netgear wifi apps.quite useful.it will do some wifi surveying suggesting the least channel that you can use.

for 2.4 Ghz

mode : wireless N only
bandwidth : 20 Mhz only ( 40 Mhz is channel bonding)
Rate: Auto
Power :100%
Channel : 1 or 6 or 11.can try first.

tm net still slow.