Wireless Issues with Dell Latitude E4300

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Do you browse well ?

SOLUTION

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ASKER

At bottom right it shows full bar with a yellow mark means no internet.

Yes, so try the reset I suggested.

If you browse well and the problem is (updates don't work) you will have to wait and try in another time
and connection will work
but if you assume that another person connect with you in the same wifi you can use angryip to ensure that if any person stole your connection

ASKER

First command go thru but i may made mistake in typing the second command. My kids are using the same wifi but its just my computer is not getting it.

Second command is not one line.

ipconfig /flushdns <enter>
net stop dnscache <enter>
net start dnscache <enter>

Try again and then restart and test.

If that does not work, download the Wireless driver from Dell, remove (uninstall) wireless driver and install the newly downloaded driver.

ASKER

How to remove the wireless driver?

Device Manager, find the wireless driver and remove it

reset your router first

disable your wireless card and then enable it, and uninstall any unwanted App. from control panel
if the exclamation marks still exsits you have to reinstall the wireless driver again(Uninstall the old one the restart and install the new one) and if the problem still exsits you have to go to system restore to restore a good point after the problem ,I think every thing will be OK after restore point

It would be better to uninstall the card and reinstall it

SOLUTION

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That is the Reset Command and Uninstall Command I suggested above.

ASKER

I tried everything but the wifi icon still has a yellow exclamation mark. I am using windows 7 32 bit version.

SOLUTION

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Don't forget to Reset your router first.

Right click on WIFI icon in system tray >> Open Network and sharing center >> Manage Wireless networks >> Right click and then select remove network. do the same for all. ( make sure you know the WIFI password for each network).

now try to connect again and type your WIFI password.

if above suggestion didn't fix the issue then open device manager >> expand the network adapters >> then take a print screen and post it here.

Try the following:

Open cmd.exe with Run as Administrator. In the black command window, run SFC /SCANNOW. Allow to completer, close out, shut down, start up and test.

If that does not work, consider a Windows 7 Repair Install. You need the Windows 7 DVD or a working recovery partition. Here is a Seven Forums tutorial to assist.

http://www.sevenforums.com/tutorials/3413-repair-install.html

ASKER

I may missing some thing in this command. I tried it as an administrator but it doesn't work.

SFC /SCANNOW

I also remove the network and restart the computer but it still the same.

Go to Start. cmd and when cmd.exe shows up, right click and Run as Administrator. A black command window opens.

In that window, run SFC /SCANNOW and see if (a) it runs and (b) gives any errors.

ASKER

Its doing some thing now.

According to the message above, you need to let it complete.

ASKER

I tried it open this log file but it gives error.

Those log files are big. Find Notepad in your Start Programs menu, right click on Notepad and select Run as Administrator. Now navigate inside Notepad to the Log file and open it. Look towards the end for errors.

ASKER

It doesn't says error at the bottom.
CBS.log

Who manage the router? What is the scope of DHCP range?

True but there are a number of error statements ("this could not be repaired")

Try running SFC a second time - sometimes works with Windows 7 and check your wireless again.

If no luck, consider the repair install.

ASKER

you mean sfc / scannow?

I mean run SFC /SCANNOW a second time and then if that does not correct your wireless, try a Windows 7 Repair Install. You might wish to get a computer savvy friend to help you with this.

http://www.sevenforums.com/tutorials/3413-repair-install.html

ASKER

There are three computers connected with the router.

ASKER

I don't know how to check that.

Check at the DHCP server side

I don't know how to check that.

For the router, open up the router setup with a web browser and go to DHCP settings. Look at the DHCP range. I would think it would be big enough by default to handle 3 computers.

ASKER

How to open the router setup in the web browser?

ASKER

I am sorry I give the wrong computer name. Its a Dell Latitude D620.

Open that famous Admin Command Window above.

Type IPCONFIG.

What IP address do you get (192.168.1.x say) Router would be (here) 192.168.1.1

Open a web browser and in the address line http://192.168.1.1 and the router administration should come up. It may still be the default admin ID and password and you need to look at the router documentation for this.

You also might be better to take this computer to a local computer shop and have them help you with this.

ASKER

This is showing when i type the ip address in the browser.

ASKER

I may have to change that wireless thing.

It is possible you do. It has a proper IP address; 192.168.1.100

Your built-in wireless adapter should have a hardware problem.

Buy a USB wifi adapter will be much easier to solve your problem.

Please try this:

Right click on WIFI icon on the bottom right side of the screen >> Troubleshoot Problems >> then follow onscreen menu and let it finish.

SOLUTION

nobus

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ASKER

It never works since I bought that unit.

That is kind of new information in here.

1. Any warranty?
2. Take to a computer shop for repair.
3. Try a USB unit as suggested above.

ASKER

No warranty bought an year ago from ebay.

Did you try a fresh Windows installation ?

ASKER

I don't have a windows 7 CD.

If you have your product key, you can get a copy from here:
https://www.microsoft.com/en-us/software-download/windows7

https://www.experts-exchange.com/questions/29061340/Wireless-Issues-with-Dell-Latitude-E4300.html?anchor=a42324287¬ificationFollowed=198596259&anchorAnswerId=42324210#a42324210

Do you connect by network cable also to RJ45 port of your notebook?

Your above comment indicates there is a IIS web server using the RJ45 port. This symptom suggests a mis-configuration or your notebook has infected with a malware.

ASKER

I do tethering

SOLUTION

serialband

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I do tethering

You cannot connect via network cable and wirelessly at the same time to the same router.

Please disconnect the network cable and connect to the wireless network and run the command below and post back your results.

ipconfig /all

ASKER

This one doesn't works.
ping 8.8.8.8
I have 3 computers and they all are connected with the router. Two automatically connect with the wifi but the one D620 has an issue. That's why I use tethering on that computer to run the updates. I checked the new updates, there were few related to office suit.

serialband

Do the other 2 ping commands work?

ASKER

Yes the other two reply on this address
ping 8.8.8.8

I think you need to take this to your local shop and get the Wi-Fi card on this laptop (which never worked, you said) replaced.