Update as of september 2011: Microsoft has launched a small script/tool, that could help you out. You can find it here: http://support.microsoft.com/kb/928233/en-us
I’ve had problems with my connections in Vista for quite a while now, and I think i finaly have found the solution. My problem was that I lost the connection after a while without really knowing why. My xp-laptop were still online. Anyway, after discovering that my linksys router may not support DHCP BROADCAST flag, i found a solution from Microsoft on how to disable this function in Vista. So far my connection have been stable after adding the DhcpConnDisableBcastFlagToogle
So, here is how you do it.
1. Click Start
, type regedit in the Start Search box, and then click regedit in the Programs list.
If you are prompted for an administrator password or for confirmation, type your password, or click Continue.
2. Locate and then click the following registry subkey:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\Interfaces\{GUID}
In this registry path, click the (GUID) subkey that corresponds to the network adapter that is connected to the network.
If you don’t know wich one of those cryptic {GUID} to select, just find the one that has got an IP address. (se screenshot below)
3. On the Edit menu, point to New, and then click DWORD (32-bit) Value.
4. In the New Value #1 box, type DhcpConnDisableBcastFlagToggle, and then press ENTER.
5. Right-click DhcpConnDisableBcastFlagToggle, and then click Modify.
6. In the Value data box, type 1, and then click OK.
7. Close Registry Editor.
If you are using both wireless and regular connection, you’ll need to add DhcpConnDisableBcastFlagToggle to both.
I hope this works out for you. If it does or doesn’t please leave a comment on this page.
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Does this only take care of connections with routers? I am having problems with losing internet connection and iI am connected directly to my modem. Will this solve this problem? After speaking with my provider, they sugggested a new network card. Anyone have any suggestions? Not to compter savy here.
Thanks.
Recently I did an Upgrade to Windows 7 and had no problem at all untll I got the notification that updates couldn’t get through followed by a dark screen telling me that I was using an illegal version :S
Any ways I didn’t hesitate and changed back to Vista and the problems started over again; after each update it wants to restart, Internet explorer stoped working and basically froze so I had to shut down through Tasks bar, and my windows mail would stop working because of connection failures.
the worst thing is that i can’t change the Menu and task bar language.. I need to set it up in English and the instllation was done in Holland therefore the language is Dutch. Please help me with this part because I cant loose my laptop again for a reboot.
I already took the advice on top. Thanks a lot for that , now lets see if it works
Hello, I am having a weird problem with local and internet access on my Vista laptop and XP desktops as well as in a Linux run laptop.
We are using a satellite internet in a remote area of Mexico. We have been using it with no problem for about a month. All of a sudden on tuesday all we get is local access NO internet access. The weird thing is that with local access we can brows most pages, including facebook and some movie sites. However, the most important thing for us is email and that we cannot even access the login pages (www.mail.yahoo.com, http://www.mail.gmail.com, or hotmail). It says
» Unable to connect
Firefox can’t establish a connection to the server at http://www.google.com.
* The site could be temporarily unavailable or too busy. Try again in a few
moments.
* If you are unable to load any pages, check your computer’s network
connection.
* If your computer or network is protected by a firewall or proxy, make sure
that Firefox is permitted to access the Web.
We have tried IE, Mozilla, UBUNTU and Chrome all say the same thing.
When you first turn on the computer you get both local and internet access for about 5 minutes but then it goes back to just local access. And in those five minutes we still cannot acess the email login pages.
Does anybody know what is up? I called the Mexico satellite providers and well they don’t understand whats going on either. I appreciate any help you can give us. Gracias
Colibri
I fixed my similar issue by resetting the win sock. Instructions below.
http://support.microsoft.com/default.aspx?scid=kb;en-us;811259#LetMeFixItMyselfAlways
Good luck. What a relief.
hahaha… i had this same problem for 3+ weeks. the solution was to get a different cordless phone. the problem is that 2.4ghz cordless phones use the same bandwidth as many wireless modems (2.4ghz). check out any new cordless phones these days, and they’re all either 5.8ghz or «dect 6.0.» the new bandwidth won’t battle your wireless connections.
well, there’s my good deed for the day. you’re welcome.
Thanks so much! I was getting really upset that my internet would just drop out all of the time while the xp computers were still working just fine. I have a linksys router too so I searched and searched until finally finding this article. I tried all kinds of things, I thought it might be the firewall or something else but this did the trick!
I have a Toshiba satellite laptop that one day stopped connecting to the internet even though It shows my router with a excellent signal. I came across these instructions and gave them a try. PROBLEM SOLVED!!!!! I cant believe it worked. This website was truly a life saver. THANKS!!!!
While fiddling around with everything possible to resolve this issue, I found that my BELKIN N1 router’s DHCP Lease Time was set to 1/2 hour! This coincided with the loss of internet connection on my Laptop 9Win 7 Ultimate). I suspected that the loss was occurring at regular intervals but could not figure out why!
Last night I reset the router to a 2-weeks lease time and since then (10 hours aleady) I have not lost the connection once! Seems Win 7 may have a problem refreshing(or polling) the DHCP or the IP address automatically!
I hope this is the end of my delema and I hope this is helpful to others.
Bless u all.
the note after step 7 says:
«If you are using both wireless and regular connection, you’ll need to add DhcpConnDisableBcastFlagToggle to both.»
How would I modify the steps to «add to both»?
Thanks,
Kent
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\Interfaces\{GUID}
http://www.catonett.com/blog/archives/194
It didn’t work…
Hi.
Had same problem with Hp Pavillion dv6000 laptop centrino, running Vista,
(Within 5mins of going on line, laptop disconnected from internet router conection)
Tried DHCP solution didn’t work for me.
But what did work was altering the power plan for battery to High Performance
from Hp power save setting.
Everythings tickety boo now.
Thought i’d leave this note for others.
Thanks for reading Ellis
Wow, it works – immediately after a re-start!! Thanks a bunch!!!
Solved my problem to a great extent…thanks a ton…I am gonna share this link with others…
thnx, man! it helped!
Thank you so much for this fix! I’ve been ready to toss the Vista PC out the window for the past two weeks trying to find this!
It didn’t work for me. I’ve had this problem for a while. I even bought a new router because I thought that was the problem. Vista Sucks! Any other suggestions?
hey im a bit stupid when it comes to getting all ‘techy’, only one of mine has an actual IP address thing.. but then the others have a DCPIP or something? im confused! fark
Thank you so much! It works on my computer! I had this problem with my desktop computer for a while. My router is belkin G+ and my desktop computer is a D-link N wireless. I am running the Windows Vista. It dropped so frequently today and I am lucky to find your website to solve this problem. It works perfect now. I have asked many IT professions but no one can really give me the right clue! Thank you very much! You are great!
woahhh it’s useful thanksssssssssssssss
Please help me with step 7: «If you are using both wireless and regular connection, you’ll need to add DhcpConnDisableBcastFlagToggle to both»
I have been trying to fix my brother’s PC with Vista installed as he cannot access Explorer. All tests tell us there is a connection to the network and wireless device working properly. Modem tests come out fine. My Mac runs perfectly. All I can suggest is dump your Windows junk and buy a proper computer from Apple.
This worked — thank you! I have a Toshiba sattelite with a Lynxys (spelling?) wireless router. The laptop kept dropping the internet after updates installed. I was about to pay to have the darn thing rebuilt, but then my mother found this solution and it worked. Thanks!
Hi there, thanks a lot for the useful tips! My Vista hasn’t lost the connection yet!!!!
Have a lovely 2011,
peace
Rod
I have vista and ive been out of connection with my internet for a week now. When j click on mozilla it will just say ‘unable to connect’ will doing this fix this problem?
Did not work for me.
The above fix seems to work, I have a Linksys Router Model Number WRT110…it works fine after a few minutes of finding the network and finding a ip address, but it takes to long to do that but once its working it doesn’t loose internet connection, before I use the fix above I would loose all my connections on my Windows xp computers and my ip cameras, so far so good, thanks for the fix.
I hate Windows Vista and 7!!
Im having same issue with Windows 7 on my Dell mini labtop but I havent tried fix yet, once I try it I will post.
My Toshiba Satellite Vista still drops or cancels the internet connection. Any other solutions?
well, I tried this having spent stressful hours onthe phone to Talktalk…who told me to pay for an engineer! They replaced my netgear router with a cheapo rubbish looking talk talk one when I lost connection. I can connect with my XP laptop, but my son’s is Vista…..and I just can’t get on to the net.
Tried the above step by step….but no connection and failed ping again.
I despair ~ can’t really afford to pay someone and don’t know who to call anyway !! arghhhhh
THANK YOU SOOOOO MUCH !!!! It worked … I was going nuts and this solution saved my hours that would otherwise make me crazy, angry and nervous and trying to uninstall virus sw etc… Strangely Google was always available, searched fine but never displayed the search links, and worst is it sometimes used to work just fine and this makes problem solving even more difficult…
Best Regards.
Himmm, now it does not work again… himmm, not sure why it worked after this registry change and not working again after reboot….
This problem has been driving me INSANE for a week now.
Just tried your fix and so far so good!
Thank you sooooo much – you’re a genius!
tried the fix and it did not work. when I ping the IPv4 Dhcp server it times out. Is there a fix for this?
This was the only solution I tried that actually worked. What is odd is that I applied it to my computer and seems to now make the network more stable for all the other computers.
I literally tried everything else to solve my networking issues!
On the last step you wrote «If you are using both wireless and regular connection, you’ll need to add DhcpConnDisableBcastFlagToggle to both.»
I have 5 folders beneath «interfaces» how do I know which ones I have to make a new folder inside of? 4 of them contains the same stuff.
Does that mean I have to make the folder in each one of them?
It seems to have worked for me.
Thank you!
thank u very much this problem troubled me more than 10 days now it solved once again thanks
Fix worked a treat back up and running……..Thanks
Queenie; You can choose the ones that got an IP-address.
I tried it but it did not work. In fact, I lost my Internet connection twice in the same day, something that never happened in the past. I rechecked my work and I did it correctly.
Any other ideas or thoughts would be appreciated!
Thanks
I had this problem when i first put Windows 7 on my pc a while back and fixed it. Unfortunately i had to reinstall everything and never noticed this problem in any major way and had frankly forgotten about the problem and the fix That is until i was rdp’ing to it from my laptop and was getting sick of the dropoffs every 5-20 minutes.
Thanks for the fix, certainly making sure i keep this one bookmarked for future reference.
Thanks so much for providing such useful information here. It solved my problem because I was facing the same problem with my PC. Keep up such good posts!
Didnt solve the problem. Mine is a Dell XPS Studio Laptop loaded with 64 bit Vista Home Premium. Do I need to do anything else?
First of all I am happy w/Windows. This morning I checked my e-mail; all was fine. Now I go to my e-mail and there are a lot of strange things on there, i.e. lists of post office failures (all way down page) and just junk. Can you help me? I was trying to do my update
that poped up on my screen. Thank you. Bobbie Evans HELP WINDOWS
Hi Subasish. I’m not sure what the problem with your computer is but I’ve would recomend upgrading to Windows 7. A lot less hasle.
Glad I could help Mike.
Hi Guys !
It didnt worked for my friends case but this one worked
follow the same instructions as mentioned above (need not be) and addition to this
Just change your settings as mentioned bellow in the same service
i.e.,
Dhcpserver should be the same as that of DhcpNameserver
and try to have IP address similer to xxx.xxx.x.x
close restart and connection should be working
Great advice – this solved my problem with VAIO Windows 7 laptop connecting to D-Link WBR 2310 wireless router.
Many Thanks!!
didn’t work for me
i have a Vaio with vista, i deleted symentic which i was using for last three years. then once i connect to internet my vaio gets restarted. it is not allowing me to connect to internet.