[andemo]

Hi guys,
Hope you can help with this annoying problem: recently I installed Vista Ultimate on a Pentium 4, 3 Ghz., 2Gb. RAM running a D-Link DSL G624-T wi-fi router and I lose internet connection every couple of hours. If I reset the router I get connected again but it is becoming extremely annoying. On XP SP2 which I had initially I had no problem.
When disconnecting it tells me there is a DNS problem!

What might be the cause?

[JohnWill]

Some things you can try here.

1. For wireless connections, change the channel on the router, I like channels 1, 6, and 11 in the US.
2. For wireless connections, try moving either the wireless router/AP or the wireless computer. Even a couple of feet will sometimes make a big difference.
3. Update the firmware to the latest version available on the manufacturer's site.
4. Reset the router to factory defaults and reconfigure.
5. Update the network drivers (wired and wireless) on your computer to the latest available.

Many times these measures will resolve a lot of intermittent issues.

[andemo]

Thanks for your input. I forgot to mention that my desktop computer is connected to the wi-fi router by cable so...
Anyway I have already updated all firmware prior to this and it still bugs me. I wonder if it is a Vista think (kicking routers out, I mean)and if there is a patch or smth. available. Thanks nonetheless!

[JohnWill]

Did you do a reset to factory defaults and reconfigure?

Another thing to try is these patches for older network hardware.


Changes that may help to increase the compatibility of Vista with older networking devices:



Disable the IP Helper service:

1. Hold the Windows key and type R, enter "services.msc" (without the quotes) and press Enter
2. Scroll down to the IP Helper service, right click on it and select Properties
3. In the dropdown box that says "Automatic" or "Manual", set it to Disabled and then click on "Apply"
4. Then click on "Stop" to stop the service from running in the current session
5. Click OK to exit the dialog



Disable IPv6:

1. Hold the Windows key and type R, enter "ncpa.cpl" (without the quotes) and press Enter
2. Right click on each network connection and select "Properties"
3. Remove the checkmark from the box next to "Internet Protocol Version 6 (TCP/IPv6)
4. Click OK to exit the dialog

NOTE: You should do this for each network connection.



Disable the DHCP Broadcast Flag:

Link: http://support.microsoft.com/default.aspx/kb/928233

1. Hold the Windows key and type R, enter regedit and press Enter.
2. Locate and then click the following registry subkey:
3. HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\Inter faces\{GUID}
4. In this registry path, click the (GUID) subkey to be updated.
5. If the key DhcpConnForceBroadcastFlag does not exist, use the Edit menu, point to New, and then click DWORD (32-bit) Value. In the New Value #1 box, type DhcpConnForceBroadcastFlag, and then press ENTER. If the key exists, skip this step.
6. Right-click DhcpConnForceBroadcastFlag, and then click Modify.
7. In the Value data box, type 0, and then click OK.
8. Close Registry Editor.

NOTE: You should do this for each and every GUID subkey.
NOTE2: (GUID) is a mnemonic for the individual subkeys, the actual text "GUID" does not appaer.




The only program I'm aware of that currently relies on IPv6 is the new Windows Meeting Space. The first 2 changes will cause that program not to work - but will leave all of your normal (IPv4) connections unaffected. If it causes problems that you can't overcome, simply revert back to the original settings.

[andemo]

Thank you again! I have done everything as told and I suppose I just have to wait and see what happens!
Looking forward to hearing from you again (maybe on other matters).