darkevia
1 Copper

Wifi issue with Dell L501x

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Hello,

2 days ago, my laptop was connected to my router and working fine. But it then randomly disconnected and haven't been able to connect back since. I am using an ethernet cable to access the internet, and have tried many ways to try and resolve the issue but nothing is working.

I have a Dell L501x (Win 7 64-bit) with the Intel Centrino 1000 BGN wifi card. I have restarted the router and modem and disconnected all devices and tried reconnecting, but to no avail. I have tried updating the drivers, system restoring and using safe mode (with network) but nothing works. The modem and router are working fine as other devices connect and access the internet, it is just my laptop that cannot. 

I am sure it is not a hardware issue as the card detects all the surrounding networks. The troubleshooter only says "An administrator profile failed to obtain an IP address from the DHCP server."

I would appreciate some help with this problem,

Thanks.

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darkevia
1 Copper

Re: Wifi issue with Dell L501x

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Hello Rick,

Sorry for the delay. I finally figured out the problem - it is the modem/router itself. It's really old and has some security function where it kicks out incoming connections if there are a few already present. Had to reset the IP gateway right from the router itself.

I really appreciate all the help from you,

Thanks.

10 Replies
7- Thorium

Re: Wifi issue with Dell L501x

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darkevia,

 

What virus program do you have installed?

 

Can you run Finding System Information REMOVE YOUR PRODUCT ID and REGISTERED OWNER and post the information back here.

 

 

Rick

#DellRockstar

What is a Dell Service Tag and how do I locate it? 

Original poster, If you have solved your problem, can you please mark the correct thread(s) with your solution. Thanks 

Welcome to Dell Community!

#DellWorld 2012

#DellWorld 2015

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#MicrosoftMVP - Windows Expert-Consumer April 1, 2012 to March 31, 2015

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darkevia
1 Copper

Re: Wifi issue with Dell L501x

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Hi Rick,

I use the free Avast anti-virus program. Here is the system info:


Host Name:                 SAFIN-XPS
OS Name:                   Microsoft Windows 7 Home Premium
OS Version:                6.1.7601 Service Pack 1 Build 7601
OS Manufacturer:           Microsoft Corporation
OS Configuration:          Standalone Workstation
OS Build Type:             Multiprocessor Free
Registered Owner:          REMOVED
Registered Organization:   Microsoft
Product ID:                REMOVED
Original Install Date:     21/01/2011, 6:07:01 PM
System Boot Time:          21/02/2013, 3:41:48 PM
System Manufacturer:       Dell Inc.
System Model:              XPS L501X  
System Type:               x64-based PC
Processor(s):              1 Processor(s) Installed.
                           [01]: Intel64 Family 6 Model 30 Stepping 5 GenuineIntel ~919 Mhz
BIOS Version:              Dell Inc. A06, 06/01/2011
Windows Directory:         C:\Windows
System Directory:          C:\Windows\system32
Boot Device:               \Device\HarddiskVolume2
System Locale:             en-ca;English (Canada)
Input Locale:              en-us;English (United States)
Time Zone:                 (UTC-05:00) Eastern Time (US & Canada)
Total Physical Memory:     6,076 MB
Available Physical Memory: 3,458 MB
Virtual Memory: Max Size:  12,151 MB
Virtual Memory: Available: 9,176 MB
Virtual Memory: In Use:    2,975 MB
Page File Location(s):     C:\pagefile.sys
Domain:                    WORKGROUP
Logon Server:              \\SAFIN-XPS
Hotfix(s):                 179 Hotfix(s) Installed.
                           [01]: 982861
                           [02]: KB971033
                           [03]: KB2305420
                           [04]: KB2393802
                           [05]: KB2425227
                           [06]: KB2475792
                           [07]: KB2476490
                           [08]: KB2479628
                           [09]: KB2479943
                           [10]: KB2484033
                           [11]: KB2485376
                           [12]: KB2487426
                           [13]: KB2488113
                           [14]: KB2491683
                           [15]: KB2492386
                           [16]: KB2497640
                           [17]: KB2503658
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                           [19]: KB2505438
                           [20]: KB2506014
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                           [63]: KB2585542
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                           [65]: KB2588516
                           [66]: KB2603229
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                           [122]: KB2712808
                           [123]: KB2718523
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                           [125]: KB2719177
                           [126]: KB2719857
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                           [169]: KB2786400
                           [170]: KB2789645
                           [171]: KB2790113
                           [172]: KB2790655
                           [173]: KB2792100
                           [174]: KB2797052
                           [175]: KB2799494
                           [176]: KB958488
                           [177]: KB976902
                           [178]: KB976932
                           [179]: KB982018
Network Card(s):           4 NIC(s) Installed.
                           [01]: Intel(R) Centrino(R) Wireless-N 1000
                                 Connection Name: Wireless Network Connection
                                 Status:          Media disconnected
                           [02]: Realtek PCIe GBE Family Controller
                                 Connection Name: Local Area Connection
                                 DHCP Enabled:    Yes
                                 DHCP Server:     192.168.1.1
                                 IP address(es)
                                 [01]: 192.168.1.107
                                 [02]: fe80::8594:caf:a2c6:a0b
                           [03]: Microsoft Virtual WiFi Miniport Adapter
                                 Connection Name: Wireless Network Connection 2
                                 Status:          Media disconnected
                           [04]: Microsoft Virtual WiFi Miniport Adapter
                                 Connection Name: Wireless Network Connection 3
                                 Status:          Media disconnected


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darkevia
1 Copper

Re: Wifi issue with Dell L501x

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The WLAN was turned off when I performed the system info check; here it is when I turned it on:

01]: Intel(R) Centrino(R) Wireless-N 1000

                                Connection Name: Wireless Network Connection

                                DHCP Enabled:    Yes

                                DHCP Server:     255.255.255.255

                                IP address(es)

                                [01]: 169.254.243.156

                                [02]: fe80::4a9:3ec1:4b5f:f39c

                          [02]: Realtek PCIe GBE Family Controller

                                Connection Name: Local Area Connection

                                DHCP Enabled:    Yes

                                DHCP Server:     192.168.1.1

                                IP address(es)

                                [01]: 192.168.1.107

                                [02]: fe80::8594:caf:a2c6:a0b

                          [03]: Microsoft Virtual WiFi Miniport Adapter

                                Connection Name: Wireless Network Connection 2

                                Status:          Media disconnected

                          [04]: Microsoft Virtual WiFi Miniport Adapter

                                Connection Name: Wireless Network Connection 3

                                Status:          Media disconnected

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7- Thorium

Re: Wifi issue with Dell L501x

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darkevia,

 

Avast is not going to be a problem.

 

The 169.254 IP address tells me that there is a problem with the wireless router communicating with the router/modem.

 

You didn't change wireless router or modems recently, did you?

 

What is the make and model of your wireless router?

 

Power off your ISP modem/router and your wireless router(if any) for 30 seconds. Then power on the ISP modem/router. Wait 15 seconds, then power on the wireless router(if any)

Restart the computer and try to connect.

What happens?

 

 

Rick

#DellRockstar

What is a Dell Service Tag and how do I locate it? 

Original poster, If you have solved your problem, can you please mark the correct thread(s) with your solution. Thanks 

Welcome to Dell Community!

#DellWorld 2012

#DellWorld 2015

#DellEMCWorld 2016

#MicrosoftMVP - Windows Expert-Consumer April 1, 2012 to March 31, 2015

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darkevia
1 Copper

Re: Wifi issue with Dell L501x

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Actually, there was a change of both routers and modems recently (around 2-3 weeks ago, but everything was working fine till about 2 days ago).

The current router is a D-link DIR-600L.

I have tried restarting them yesterday, but nothing changed. I will try again now just to make sure.

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7- Thorium

Re: Wifi issue with Dell L501x

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darkevia,

 

As a starting point, I usually prefer using these Recommended Wireless Router Settings I use channel 11. I would make a new SSID to make connecting easier.

 

 

Rick

#DellRockstar

What is a Dell Service Tag and how do I locate it? 

Original poster, If you have solved your problem, can you please mark the correct thread(s) with your solution. Thanks 

Welcome to Dell Community!

#DellWorld 2012

#DellWorld 2015

#DellEMCWorld 2016

#MicrosoftMVP - Windows Expert-Consumer April 1, 2012 to March 31, 2015

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darkevia
1 Copper

Re: Wifi issue with Dell L501x

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Hi Rick,

So I restarted everything and again, nothing has changed. Ethernet is the only way I can connect my laptop to the internet.

I am pretty sure the recommended settings are in place. I am at a complete loss as to why the wifi isn't working. All other devices are working perfectly.

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7- Thorium

Re: Wifi issue with Dell L501x

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darkevia,

 

Belkin routers are one of the few routers that I have had problems connecting with. The have issues with WPA security. Thompson is another problem router. The ISP knows about the connection issue.

 

When this happens to me I go to Drivers & Downloads enter the service tag, then select the operating system. Download the drivers and save them to your desktop.

 

Make a system restore point

 

Start, control panel, device manager, network adapters, right click on Intel(R) Centrino(R) Wireless-N 1000, left click uninstall. Tell it to remove drivers and software.

 

Restart your computer.

 

When you log back in, the new hardware wizard will try to install the drivers but fail. Install the drivers saved to your desktop.

 

What happens?

 

Places to look to see if your Connection is enabled

 

 

Rick

#DellRockstar

What is a Dell Service Tag and how do I locate it? 

Original poster, If you have solved your problem, can you please mark the correct thread(s) with your solution. Thanks 

Welcome to Dell Community!

#DellWorld 2012

#DellWorld 2015

#DellEMCWorld 2016

#MicrosoftMVP - Windows Expert-Consumer April 1, 2012 to March 31, 2015

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darkevia
1 Copper

Re: Wifi issue with Dell L501x

Jump to solution

Hello Rick,

Sorry for the delay. I finally figured out the problem - it is the modem/router itself. It's really old and has some security function where it kicks out incoming connections if there are a few already present. Had to reset the IP gateway right from the router itself.

I really appreciate all the help from you,

Thanks.