hi all,
just got unifi the other day. all was good, every device could connect until 2 days ago when my laptop lost the wifi connection and couldn't detect the network.

other devices (bb/iphone/other laptop) can detect and connect to the network.

so simple deduction that its my laptop wifi kaput right --- WRONG! my laptop can detect and connect to other networks (neighbours/starbucks/office) --- just this UNIFI router that it can't even detect let alone connect

have deleted and reinstalled the network card in my laptop and played around w/ router settings but no go.

anyone w/ similar issues? fixes?

thanks!

did u change the b/g/n support feautures .. what encrption password u used ?? WPA2 or ???

did u try to off it for awhile and turn it on again?
some routers cannot stand being on for 24/7.

using wpa 2...tried g/b/n then g/b still no go.
on/off router doesn't explain why only my laptop cannot detect.

friend said probably network card koyak --- where it cannot detect certain kind of signal --- sending back to dell.

sometime you need to install the driver in a proper step. some is install before plugin, plugin and install...

and use its installer.

unifi router is the same with other wireless router.. but its kinda weird ur pc can detect other wireless network.. try other pc to detect ur unifi... maybe ur unifi router got probs

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This post has been edited by ff7yta: Feb 19 2011, 11:41 AM

any solution to this ? I also facing thing ...only the Unifi router not able to connect but other wireless no issue

anyone found the solution? I also facing the same problem too...

Try to delete the Wireless profile for Unifi connection in Windows.

Restart pc/notebook and see whether it can detect the Unifi WIFI signal.

Solution: Router Advanced Setting-> Advanced Wireless, wireless mode change to 802.11 n/g/b, bandwidth change to 20mhz

I'm not sure if this is the case but a while back i had the same problem. turns out XP doesn't support WPA-2 as security. IF your laptop is an XP, try changing the encryption for your wifi to WPA only. Good luck

Edit: I mean to say some wireless card. not windows XP itself. sorry about that. From my experience, older wireless card can't detect WPA2, in some cases they can, but can't connect.

This post has been edited by im_stung: Mar 4 2011, 03:07 AM

I'm not exactly sure bout ur problem but these might be what causing it..
1) u're using WinXP with no service pack or service pack 2 with no support for WPA2. change wireless security to WPA or u can apply this update - http://www.microsoft.com/downloads/en/deta...e8-f7fc20195769

2) Your wireless router is using wireless channel 12 or above. Ur computer's wireless adapter probably unable to detect wireless router with that channel, only limited to wireless channel 1 to 11 (happened to one of my laptop before). Try check which wireless channel that ur router is using.

same problem here. last 2 days. can connect to own WIFI. today. I cant find my own WIFI. I can see anybody else WIFI.

But, I can my own wifi via other device like BB and iPhone, not my laptop

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Added on April 4, 2011, 12:10 amSolution: Router Advanced Setting-> Advanced Wireless, wireless mode change to 802.11 n/g/b, bandwidth change to 20mhz

YES it is the solution

This post has been edited by FirdausCoway: Apr 4 2011, 12:10 AM

as stated in previous post. this is the solution.

note to others: i have had to change the settings again when there was a blackout and the router was reset.

thanks miseryguy and others who replied/helped. cheers!

What laptop are you using? MAYBE the wifi card is not supporting 802.11n type of network.

Where to find this Router Advanced Setting?

-> Advanced Wireless, wireless mode change to 802.11 n/g/b, bandwidth change to 20mhz

Im using 202.11a/b/g WLAN
can support?

Thx so much, bro!

Hi Firdaus,

Where can i find the router advanced setting? I have 2 laptops, the other newer laptop can connect the wifi easily, while my old dell laptop can detect other wifis but not mine >_< Anyone can help?

Thanks,
Sharon

You first try to access to the internet with wire.
If you can connect to the internet then find some driver updater like DriverGenius or something like that.
It will find the suitable drivers and install for you!

i also got this problem...where can i find the router advance setting?

Yes this the solution. Worked for me by just changing the bandwidth to 20mhz.


Erh....after i switched off my laptop and my router, my laptop can't connect back again. Checked the setting, it is still at 20mhz but can't connect.....

This post has been edited by buyou12: Jun 3 2011, 08:02 PM

Yes it helps me, thanks bro

for those who fail.. try to put the channels of the wireless from "Auto" to maybe fix ch 6 or ch 7.. to try again...

How about changing your 'Wifi enable control' to let Windows manage your wifi(Use Windows To Manage wifi)?

i.e.
1. double click the wifi signal icon.--at bottom left screen.
2. Go Tab->Advance
3. Choose "Use Windows To Manage wifi"
4. Close.

Just wanna confirm right, after changing to this setting ( change to 20mhz )will it affect the connection for other devices like the newer laptops?
One more thing, what's the difference between 20mhz and 40mhz, i mean how does it affect the performance?

Thanks.

This post has been edited by THY0115: Jul 10 2011, 04:33 PM

I also face the same problem. Everything was working well before Sunday. All my devices can be connected to my unifi router. All of a sudden, my HTC Desire HD, iPad and Acer laptops cannot detect the wifi anymore. My neighbour's unifi can be detected. My brother's iPhone 3G and 3GS, Asus laptops can connect to my wifi. Strange but true. I have changed the settings to 20mhz and also wireless b/g/n. Still the same outcome. Please help.

try using WEP for your router password.... I won't recommand that but give it a try to check if it's that causing the problem.

You da man....!!!! I almost bought a new usb adapter...

How do i do this???

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Added on August 26, 2011, 3:23 pmHow do i do this?? Pleassee!!

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Added on August 26, 2011, 5:32 pmi solved it only by removing the yellow and red ethernet wires then stucking it in back. haha!

This post has been edited by Hans.R: Aug 26 2011, 05:32 PM

Alright, What I did is disable the "Wi-Fi Protected Setup (Also called WCN 2.0 in Windows Vista)" area. Go and access SETUP>>WIRELESS SETUP>>Manual Wireless Connection Setup. Then untick the WCN. (Untick the "Enable").

With this, I do not need to change to 20MHz and still using b/g/n and still using WPA2. Heh heh

change your security to WEP

my phone counld't connect to unifi wireless on the next day of installation..any solution pls??

Same problem, all devices can detect my wifi except my sister's laptop. Tried all the suggestions given, but the problem still persists. However my sister's laptop can see neighbour's wifi, and before this, my sister's laptop can detect my wifi. The problem started yesterday. Any other solutions?

Here's the solution:

1) Use a LAN cable to connect your computer to your router or use a friend's PC who could access your wireless network.
2) Log in to your D-Link control panel via 192.168.0.1 in your browser. Enter username as "admin", password leave blank. Click on Login button.
3) Go to Wireless Setup on your left hand panel.
4) Go to Manual Wireless Connection Options section, click on the Manual Wireless Connection Setup button.
5) Go to Wireless Network Global Settings, un-check the Enable Auto Channel Selection option.
6) Change the Wireless Channel to 11.
7) Save the settings. Restart your computer, and then magically, you could reuse your wireless unifi connection again!

This method Works.. thx water Dragon!!

Awesome, unifi was down, tm guy came reset my router, and i have the same problem with my htc not detecting own wifi and this solution works! thanks so much!

This totally worked ^__^ Thank you so much! Spent the entire day agonizing over why I could only detect my neighbour's WiFi then tried this out. ETERNALLY GRATEFUL.

This works for me. Thanks

Some of the WiFi drivers do NOT support channels higher than CH 11 due to US regulation.

So if you connect to the UniFi WiFi router using cable & check the WiFi settings section, if it is set to "Auto" channel & current channel is 12, 13, etc then this is the source of your problem.

Unselect the "Auto" & fix it to any other channel from 1 to 11 only.

Otherwise upgrade your WiFi drivers to the "Asian" version that fully support all channels higher than CH 11.

This post has been edited by Hattori: Apr 7 2012, 02:59 AM

Magic did happen! U are the magician!

This worked! Finally I dont have to waste one of my USB ports for a wireless adapter

Awesome bro. Manage to get my connection back with that..

I'm facing the same problem too! I think it has something to do with the OS. I have two laptops, one running on Windows 7 64-bit and the other one on Windows 8 64-bit. They often could not detect my Wf-fi signal. However my other PC running on Windows 7 32-bit has never encountered this problem.
I have used the method suggested by fellow forum member WebWalker. It resolves the problem, but not every time.

Sometimes when the above method fails, I have to turn off the laptops, then turn off the wi-fi router, turn the wi-fi router on again. Then only I turn on my laptops and see if they could detect my wi-fi network. It works most of the time.

WPA or WEP?

if WEP:

WPA2-Personal
It was set like that by default

anyway my unifi router also sometime will cause this problem for me. Here is what I did.

1. Change the WiFi Authentication to WEP (OPEN Key)
2. Reset the router.
3. Delete the WiFi profile from the Windows 8/7 Wifi Management
4. Restart the PC/Laptop
5. Re-scan and connect back.

Most of the time it will work. But there are times when it doesn't and I just need to repeat the above steps 2-5.

Not sure what is the reason. I think its like the AES Keys got out of sync. Hence the reason I switch back to WEP.

its work.. thank you.

It happened to my dell laptop.. cannot detect my TN wifi signal but others can. Then I follow the setting that u give. It works! Thank you..

Worked for me... not need to restart the laptop in my case.. thanks a lot bro...

still havent fix yet?

This method works perfectly. Nice. Thank you.