Keep Losing Internet Connection on Vista Home

I have had this problem for a few weeks now. No idea what has caused it. Searching on Google reveals tens of thousands of results, which suggests that I am not alone. However, none of the suggested solutions have worked so far.

Solutions to losing internet connection on Vista:

1. Windows might be turning off your network adapter to save power.

Turn off the power-saving option in the network adapter’s properties (wired network adapters only):

This is from the Microsoft troubleshooting site:

Open Network Connections by clicking the Start button , clicking Control Panel, clicking Network and Internet, clicking Network and Sharing Center, and then clicking Manage network connections.


Right-click the connection, and then click Properties. If you are prompted for an administrator password or confirmation, type the password or provide confirmation.


On the Networking tab, click Configure.


On the Power Management tab, clear the Allow the computer to turn off this device to save power check box, and then click OK.

I followed the instructions but did not have an option to clear, so that failed. My Ubuntu pc stays connected, but Vista Home needs to be rebooted several times a day. Checked router all is well. Other apps (such as Skype) remain connected, so seems to affect web browsers mostly. Def. a Vista problem and not a phone line, router or pc hardware problem.

2. Changing the Vista registry settings to configure the router behaviour

This solution has been repeated on forums across the internet, so I tried it, and it failed too:

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:


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 which one of those cryptic {GUID} to select, just find the one that has got an IP address. (see 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.


So now I am left having to reboot Vista several times a day. I have started to back everything up to separate drives to allow a complete fresh install. Really do not want to have to do this, as it will take time a lost time is lost money. But I am starting to think that I have little choice but to start Vista afresh and hope for the best.

6 Comments on “Keep Losing Internet Connection on Vista Home”

  1. Good news, touch wood, my connection is still OK.

    But I have now made the following changes and not sure which has fixed the problem. The solution above was not required after all. It is also possible that the problem is not fixed, and that I am celebrating too soon.

    1. Uninstalled AVG Free and installed Avast
    2. Uninstalled ZoneAlarm firewall and using Windows firewall
    3. Disabled ipv6 in Firefox, but then after this
    4. Disabled ipv6 on server

    So far all OK.

    Touch wood again. Fingers crossed (but not the one that is feeling arthritic today).

    I am tempted to reinstall AVG now (or later, give Windows internet connection a chance to crash again) and go from there. Maybe it was ipv6? Whatever that is. But maybe AVG (one forum mentioned something it FF using .sqlite file and AVG getting upset about it. I dunno. But it is working for now.

  2. I had this same problem with my new laptop convinced it was a Vista issue since my iphone, ps3 and 2 other computers held the internet fine. I did most of the fixes to Vista (regedit, power settings, etc) with no luck. I also upgraded my router firmware which 1) didn’t help Vista and 2) made things worse for my other machines.

    I scrapped the G router and went and bought a new Cisco wireless N+ router. In 20 mins I had 3 computers, a ps3, an iphone, and a wireless printer all connected without a hiccup. They all had better range and signal strength too. As I had begun to suspect (since my work wireless was fine) having the new tech router resolved the issues and Vista has never dropped in the connection since. Happy camper.

  3. Hey, i have the same problem with my laptop losing connection to all wireless networks periodically, mainly while streamin video for some bizarre reason. I’ve got AVG Free so i believe this is the problem reading the postin above. I will update it first and if this fails uninstall it. Hope this will work.

  4. Same problem exactly. Btw, just reinstalled Vista from scratch, and after 5 hours the problems started again. I don’t have AVG or Avast or Zonealarm.
    I’m as clueless as it gets and right now I’m thinking of getting myself a darn pirated version of XP and downgrading. All the day yesterday wasted for nothing when I reinstalled everything 🙁

  5. Btw, my Vista is not pirated (just in case anyone missread my frustrated post), but noway I’m gonna spend money on buying an XP when I bought Vista as well and it won’t work.

  6. As I noted above, I bought a new router and did a 20 min install and I’ve been good ever since. I haven’t had a single drop. $80 was a great investment for no dropping as opposed to hours and hours of troubleshooting, reinstalling, updating drivers, etc.

    The side benefit is that the newer rote is faster too.

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