ACER laptop not connecting via wifi

[hemenduroy]

hi, i have an ACER Aspire 4741Z and i am not able to connect via wifi
I can connect fine with ethernet but wifi is not working...the tray icon always shows a red cross

Wifi used to work fine about 2 months ago but now its not working ...please help me

heres the results from ipconfig/all (something like that which i found on other forums )

Microsoft Windows [Version 6.1.7601]
Copyright (c) 2009 Microsoft Corporation. All rights reserved.

C:\Users\TANMOY ROY>ipconfig /all

Windows IP Configuration

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

PPP adapter TATA PHOTON+:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : TATA PHOTON+
Physical Address. . . . . . . . . :
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
IPv4 Address. . . . . . . . . . . : 14.99.188.22(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.255
Default Gateway . . . . . . . . . : 0.0.0.0
DNS Servers . . . . . . . . . . . : 121.242.190.181
121.242.190.210
NetBIOS over Tcpip. . . . . . . . : Disabled

Wireless LAN adapter Wireless Network Connection:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Broadcom 802.11n Network Adapter
Physical Address. . . . . . . . . : 90-4C-E5-5D-E1-F9
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes

Ethernet adapter Local Area Connection:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Broadcom NetLink (TM) Gigabit Ethernet
Physical Address. . . . . . . . . : 00-26-2D-AF-84-78
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter isatap.{BE842C4B-3BC0-4EFC-AF20-2891B570F90D}:

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* 11:

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. . . . . . . . . . . : 2001:0:9d38:953c:1c88:33a3:f19c:43e9(Pref
erred)
Link-local IPv6 Address . . . . . : fe80::1c88:33a3:f19c:43e9%29(Preferred)
Default Gateway . . . . . . . . . :
NetBIOS over Tcpip. . . . . . . . : Disabled

Tunnel adapter isatap.{06EADD92-FB92-472F-9406-D93019C8A538}:

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 isatap.{78463C52-821F-41D8-92E4-E92AFCD70A05}:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft ISATAP Adapter #7
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter 6TO4 Adapter:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft 6to4 Adapter
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
IPv6 Address. . . . . . . . . . . : 2002:e63:bc16::e63:bc16(Preferred)
Default Gateway . . . . . . . . . : 2002:c058:6301::c058:6301
DNS Servers . . . . . . . . . . . : 121.242.190.181
121.242.190.210
NetBIOS over Tcpip. . . . . . . . : Disabled

C:\Users\TANMOY ROY>

 

[Kaktussoft]

please post output of "device manager" with network adapters branche expanded.

 

[hemenduroy]

thanks for the speedy reply here is the output of the device manager :

 

[Kaktussoft]

press FN+F3
what happens?

 

[hemenduroy]

when i press fn + f3 i get a small window to enable/disable wifi/bluetooth. i have set wifi at "on" and bluetooth at "off".

 

[hemenduroy]

when i go in the control panel, there is no 'manage wireless networks' option...(i saw this in other forums)



so i typed 'wireless' in the start menu n got a link...it says 'wireless is not currently enabled'

 

[Kaktussoft]

when i press fn + f3 i get a small window to enable/disable wifi/bluetooth. i have set wifi at "on" and bluetooth at "off".

So wifi is on now? On my acer 5742G I see above upper left of keyboard:
power on button (blue light), right side of it: harddisk light (flashing blue if accesing disk), right side of it: wireless icon (color orange).

You see the wirless icon there or somewhere else? It changes color if enableing/disabling it using fn+f3?

 

[hemenduroy]

hardisk icon : flashing blue
wifi icon : orange when i press fn + f3 n set it to 'on'. when i set it to 'off' , there is no light. But when i set it to on i still cant detect my home's wifi

 

[Kaktussoft]

network centre->change adapter settings. Richt click on wireless adapter->enable
This should fix it. Right?

 

[Kaktussoft]

hardisk icon : flashing blue
wifi icon : orange when i press fn + f3 n set it to 'on'. when i set it to 'off' , there is no light. But when i set it to on i still cant detect my home's wifi

ipconfig looks fine
device manager looks fine
if wireless icon is orange above keyboard it's fine.
just enable wireless adapter in network centre (change adapter settings) and it should be fine

 

[hemenduroy]

it is already enabled as you can see there is a disable option (which means that its enabled right? )

 

[hemenduroy]

it is already enabled as you can see there is an option to disable it (which means that it is enabled right? )

 

[hemenduroy]

sorry for the double post... i thought it hadnt got posted...it was actually in page 2 lol

 

[Kaktussoft]

it is already enabled as you can see there is an option to disable it (which means that it is enabled right? )

View attachment 235598

it's enabled. You can try connect there. But it's actually the same form taskbar. And there's a red cross you said.

Try to disconnect from your current 3G internet connection (temporary). Or disable it there (just as a test). Then try to connect using wifi.

 

[hemenduroy]

nope no luck i disconnected my 3g connection n it is still not detecting any wifi



(before i used to detect 5-6 connections i.e mine n my neighbour's.. but now..nothing

 

[Kaktussoft]

nope no luck i disconnected my 3g connection n it is still not detecting any wifi

View attachment 235600

(before i used to detect 5-6 connections i.e mine n my neighbour's.. but now..nothing

not only disconnect but also disable it temporary. Put it back as it was if still not working

 

[hemenduroy]

i didnt understand you please give me instructions

 

[Kaktussoft]

right click you 3G network adapter in network center->change adapter settings.
You see connect/disconnect. But also something like enable/disable? I don't if I'm right(?)

 

[Kaktussoft]

all looks fine anaway. To prove it's a hardware failure:

Download Thank you | Ubuntu
It's linux, so maybe it looks strange. Burn that image to CD/DVD and boot from it. Select an option something like "try ubuntu. This changes nothing to your disk"
Then search for the network settings. I'll post where to find that later

 

[hemenduroy]

there is no enable/disable option