Wireless woes. HP dv9500 CTO notebook pc.

[girlgeek19]

Hi. I have an HP dv9500 CTO notebook running 32 bit Vista Home Premium. The router is a Linksys WRT150N. The security settings are WPA-personal, encryption type TKIP. (I'm not good with networking, so if you need to know anything else, just ask.) I can connect, but am usually abruptly disconnected about 20 minutes later. Then, when I try to reconnect, I have to try to connect 10+ before it finally goes through. (It gives me the message that Windows did not receive a response from the router or access point.) I have already updated the driver, uninstalled and reinstalled the device, made sure the device manager said the device was functioning properly, checked the power options, and installed all Windows and HP updates.

The wireless card is a Broadcom 4321AG 802.11a/b/g draftn Wifi adapter.

The connection works fine when wired. I was wondering if perhaps Windows wasn't waiting long enough for the router to respond and if so, how can I adjust this? Or am I way off and something else is wrong?

Any advice would be immensely appreciated.

P.S. Our other laptop (a Toshiba) connect fine without issues.

[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.

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



Vista also may have issues in that environment...

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\Interfaces\{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.