Bật Wi-Fi có lúc máy hiện chữ: "Additional logon information may be required" có lúc không. Tôi bấm vào nhưng không vào được mạng, chỗ biểu tượng Wi-Fi hiện các vạch trắng bình thường, không có dấu chấm than.

When do you get this error “additional log on information required” ? When you try to connect to the wireless network on windows Vista or Windows 7 computer then you may this kind of error message where it will ask you for the additional log on information.

How do you fix this error ?

First thing is that you should know all the wireless settings of your router. If you are not sure about your settings then you will need to open the set up page of the router and check the settings of the router. Once you are sure that you have the correct settings of the router then you can try to connect to the wireless network again. This time you will need to add the wireless network manually.

Follow these Steps:

The Operating system on the computer is Windows Vista / 7 Click Start. Go to Control Panel. Go to Network and Internet. Go to Network and sharing center. On the network and sharing enter window you will see “ Connect to a network ” .

Click on it .

You will see your wireless network in the list. Click on your network and click connect . If your network is secured then it will ask you for the password or the network key. Type the correct network key and click connect. It will connect you.

Sometimes when you try to connect to the network it will give you the message ” press the configuration button on your access point …” or Enter the PIN number . In that case, on the same window, at the bottom you will find the option, I don’t want to configure, I want to enter the key manually or I just want to connect. click on that option and it will go to the next step.

Last week, an irritating notification started popping up constantly on my computer when running Windows 7, telling me that additional log on information might be required for me to get internet access.

Oddly enough, my internet connection worked just fine. Despite that, it kept coming back, sometimes several times a minute. That got old pretty quickly.

After doing some searching on Google, I discovered the problem to stem from the built-in internet connection check in Windows, and a combination of certain updates being installed in a certain order, in addition to using a custom DNS server (like f.ex. OpenDNS) - apparently.

Since I’m not going to stop using OpenDNS any time soon, and definitely won’t start uninstalling Windows patches, I searched for a different solution.

Cutting to the chase; I found these pages dealing with the same problem:

Page

1 - Page

2

If all of that is greek to you, or if you just want the fix, download the following Windows registry file, run it, and reboot your computer. Problem should now be gone.

Regfix

I’ve done this myself, but take no responsibility for what consequences it might have doing it on your machine.

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So after installing the slew of Windows 7 updates yesterday (November 13), all three of my computers (two wired, one wireless) started getting a pop up from the Windows network connection notification saying "Additional log on information may be required". It continues to pop up constantly and is quite annoying. The network, including the internet connection, continues to function just fine.

I figured I couldn't be the only person affected, so I googled the problem last night, but couldn't find any recent postings about this. This morning, however, I have found the following:

http://windowssecrets.com/forums/showth ... ed...-quot

http://forums.opendns.com/comments.php? ... onID=16465

The first link contains instructions to change a registry setting:

Open regedit and navigate as follows: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\servic es\NlaSvc\Parameters\Internet Double-click on EnableActiveProbing Change value to 0.

This would seem to be the easy fix…anyone have any thoughts on this, or experience the same problem? If this fix seems kosher, I'll go ahead with it this afternoon on my PCs.

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The fix is kosher.

It's that you're using OpenDNS or any other DNS provider which uses (IMHO abhorrent and broken) catch-all resolving.

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So by the time I got home yesterday and flicked on the computers, the problem had vanished.