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Wifi problem


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ryan345's Avatar
ryan345 ryan345 is offline
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Join Date: Jan 2011
07-Nov-2011, 04:09 AM #1
Exclamation Wifi problem
i'm using unifi for around 2 month all was very gd until ytd from i wake up my lappy cant connect to it....i can detect and connect to other network connection(neighbours/starbucks/office) i still can detect my house unifi just the problem is i cant connect to it >.< ... it said window was unable to connect to XXXX@unifi ~ other device like my smartphone and other laptop can detect and connect to the network.. so i can i fix it ??


currently i'm using window 7 home premium~
etaf's Avatar
etaf   (Wayne) etaf is offline
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Join Date: Oct 2003
Location: Surrey, UK
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07-Nov-2011, 06:04 AM #2
Unifi is your ISP who provide the broadband and you are trying to connect via wifi

can you connect to the router with a cable and see if that works

you will need to use your other laptop to copy things to the faulty laptop

make sure you have the correct password if using a secure wireless - log into the router and remove the wireless security and see if that will work

also you could try removing the wireless profiles

lets see the following


------------------------------------------------------------------------

How to remove Wireless Profiles
http://mgmcc.forumotion.net/t109-rem...reless-profile
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How to remove Wireless Profiles - for Vista and Windows 7
http://mgmcc.forumotion.net/networki...ofile-t109.htm
- Vista/Windows7:
http://www.tp-link.com/support/showfaq.asp?id=214
- delete the wireless profiles
Start> control Panel> classic view> network and sharing center> manage wireless networks

Delete the profiles
you will then have to enter the wireless security key for any networks you connect to - so make sure you know the correct password , and not using an incorrect password at all
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Run Xirrus Wi-Fi Inspector
Download and install

If you cannot access the internet with this PC, then you will need to copy the program across to the faulty PC

http://www.xirrus.com/Products/Wi-Fi-Inspector.aspx
Direct link to the program is here http://wpc.475a.edgecastcdn.net/0047...etup.1.2.0.exe

{If the above link does not work heres another link http://www.pcworld.com/downloads/file_download/fid,77196-order,4/download.html}

Then run and install the program - on a wireless enabled PC/Laptop
if you get an error - You need NET Framework installed for the WiFi Inspector to function.

Run the program

A user guide is available here http://www.xirrus.com/Products/Wi-Fi...uide1-2-0.aspx

post a screen shot of the program running - if there are a lot of networks showing can you click on "networks" top lefthand area - so we can see all the network information, and also post which network "Adapter Name" (1st column) is yours on the list

To post a screen shot of the active window, hold the Alt key and press the PrtScn key. Open the Windows PAINT application and Paste the screen shot. You can then use PAINT to trim to suit, and save it as a JPG format file.
To upload it to the forum, open the full reply window and use the Manage Attachments button to upload it here.
Full details are here http://library.techguy.org/wiki/TSG_...g_a_Screenshot

Note:
For a reliable (or robust as the Xirrus user guide says) wireless connection you need a signal of about -70 dBm or better.

If you are using the Mac OS then use http://www.istumbler.net/
------------------------------------------------------------------------


------------------------------------------------------------------------
ipconfig /all
If you cannot access the internet with this PC, then you will need to paste the results into something like notepad and then copy onto a machine that can access the internet and post results here

We would like to see the results from ipconfig /all post back the results in a reply here

Hold the Windows key and press R, then type CMD then press Enter to open a command prompt box (A new dialogue box - black with white font, will appear on screen ):

In the command prompt window that opens, type the following command:

Note that there is a space before the /ALL, but there is NOT a space after the / in the following command.

ipconfig /all > network.txt & network.txt

It will export the results to notepad and then automatically open notepad.

Now all you need to do is copy and paste those results to a reply here
to do that:
From the notepad menu - choose Edit - Select all
all the text will be highlighted
Next
From the notepad menu - choose Edit - Copy
Now go back to the forum - reply and then right click in the reply box and paste
------------------------------------------------------------------------
__________________
Wayne
Please let us know what the final solution was to any problem posted
ryan345's Avatar
ryan345 ryan345 is offline
Member with 36 posts.
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Join Date: Jan 2011
12-Dec-2011, 09:53 AM #3
~.~
currently im online through cable... but it is kinda difficult i online with using cable... i hope that i can online by using wifi... and i already delete the wifi profile and i still cant connect through it... im surely my password is not wrong~



Microsoft Windows [Version 6.1.7600]
Copyright (c) 2009 Microsoft Corporation. All rights reserved.

C:\Users\Chin>ipconfig /all

Windows IP Configuration

Host Name . . . . . . . . . . . . : Chin-PC
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Hybrid
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No

Wireless LAN adapter Wireless Network Connection 2:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft Virtual WiFi Miniport Adapter
Physical Address. . . . . . . . . : EA-B9-A5-2D-C0-34
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes

Ethernet adapter Bluetooth Network Connection:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Bluetooth Device (Personal Area Network)
Physical Address. . . . . . . . . : E0-B9-A5-2E-2B-0B
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes

Ethernet adapter Local Area Connection:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Realtek PCIe GBE Family Controller
Physical Address. . . . . . . . . : F4-6D-04-87-B3-AB
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Link-local IPv6 Address . . . . . : fe80::cd57:c70f:c16c:3780%12(Preferred)
IPv4 Address. . . . . . . . . . . : 192.168.0.110(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Lease Obtained. . . . . . . . . . : Monday, 12 December, 2011 8:04:20 PM
Lease Expires . . . . . . . . . . : Monday, 19 December, 2011 8:04:20 PM
Default Gateway . . . . . . . . . : 192.168.0.1
DHCP Server . . . . . . . . . . . : 192.168.0.1
DHCPv6 IAID . . . . . . . . . . . : 351563012
DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-15-23-79-E2-E0-B9-A5-2D-C0-34

DNS Servers . . . . . . . . . . . : 192.168.0.1
NetBIOS over Tcpip. . . . . . . . : Enabled

Wireless LAN adapter Wireless Network Connection:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Atheros AR9002WB-1NG Wireless Network Ada
pter
Physical Address. . . . . . . . . : E0-B9-A5-2D-C0-34
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter isatap.{8B78CBC4-B132-461B-A841-7DCDE611AB2A}:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft ISATAP Adapter
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter isatap.{06E7EC17-30DA-49DE-9B89-15A182ABAF84}:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft ISATAP Adapter #2
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter Local Area Connection* 12:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft 6to4 Adapter
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter isatap.{1D30434D-116F-4058-B4A4-6A6151F3DF83}:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft ISATAP Adapter #3
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter Teredo Tunneling Pseudo-Interface:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Teredo Tunneling Pseudo-Interface
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
IPv6 Address. . . . . . . . . . . : 2001:0:4137:9e76:383f:b1a:5077:c0f8(Prefe
rred)
Link-local IPv6 Address . . . . . : fe80::383f:b1a:5077:c0f8%16(Preferred)
Default Gateway . . . . . . . . . : ::
NetBIOS over Tcpip. . . . . . . . : Disabled

Tunnel adapter isatap.{71509484-D2DF-4FF3-8F53-352A49D6DC27}:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft ISATAP Adapter #4
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

C:\Users\Chin>^A
Attached Thumbnails
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etaf's Avatar
etaf   (Wayne) etaf is offline
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Location: Surrey, UK
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12-Dec-2011, 10:03 AM #4
well it could be as simple as that - the adapter is working and can see the wireless signals, as you say

loginto the router and remove the wireless security and then try and connect - once connected , log back into the router and add the security again - sometimes thats all that is needed to kick it back into life

make sure when you log into the router you are connected by a cable
ryan345's Avatar
ryan345 ryan345 is offline
Member with 36 posts.
THREAD STARTER
 
Join Date: Jan 2011
13-Dec-2011, 02:09 AM #5
your security mean the password right ? between can you teach me how to disable the security of unifi wireless ?

do u mean 1st disable my wireless security than plug the cable out and plug in again to connect...after connect then go back enable my security again right ? if yes i already done it but i still cant connect through wireless >.<

Last edited by ryan345; 13-Dec-2011 at 03:03 AM..
etaf's Avatar
etaf   (Wayne) etaf is offline
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Moderator with 49,846 posts.
 
Join Date: Oct 2003
Location: Surrey, UK
Experience: Intermediate
13-Dec-2011, 07:53 AM #6
Quote:
do u mean 1st disable my wireless security than plug the cable out and plug in again to connect...after connect then go back enable my security again right ? if yes i already done it but i still cant connect through wireless >.<
Connect the PC to the router with a cable - then you need to log into the router configuration pages and got to the wireless section and disable the wireless security .
Disconnect the cable between the router and PC
now try to connect to the wireless (which has no security now) - if that works
connect a cable back between the PC and the router
log into the router configuration pages and got to the wireless section and re-enable the wireless security
Disconnect the cable between the router and PC
now try to connect to the wireless

lets us know if that is what you have already tried

otherwise it sounds like something is blocking the wireless

do you have a firewall/security suite like norton, mcafee or anything like that or ever in the past on the PC
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