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[DanTana]

Hi, I just received a new company laptop and as the wireless administrator at work I was asked to test Vista with our wireless and security settings. I have had very mixed results at home with Vista and dual booting with XP sp/3. It is a HP Elitebook 6930p with the new 5300 WiMax card. I have excellent results with XP achieving 300 mb/s speeds, however with Vista it is another story. At work we are exclusively Cisco using the 1210 and 1240 AP's and can't connect to EAP-GTC although I think that is a Intel issue but connect via our open access and WEP with no problem. At home I can connect to a neighbors open Linksys wireless with no problem at all. Whenever I try to connect to my D-Link 655 using no security and broadcasting (for troubleshooting) I can't seem to keep a steady connection with Vista. I have tried Intel drivers from HP, and Intel drivers versions 11.5 to 12.1.2.1 and everything in between with basically the same results. On XP I can set the 5300 to Auto (20mhz or Auto) in the 2.4 ghz bandwith and Enable (Disable or Enable) on 802.11 N setting and I get 300 mb/s. I've tried tweaking these settings with the D-Link, and Vista and get mixed results.

Should I be using WPA security to have a steady connection? In my experience open is the best and easiest to test with, I am well aware of the security issues, why we use PEAP at work. Oh and the firmware is the latest with shareport, although I don't really use it, but am willing to sacrifice it if the other firmware will give me better results. I've also read where the old 1.11 firmware has fixed problems like this, should I revert back to this firmware? Is there a guide that might help me with this? When it works, it randomly disconnects, usually only after a few minutes. Then it decides to reconnect in a few minutes and so on and so on.

What should be my next option? I maybe requesting a different wireless card from Intel as well due to PEAP compatibility reasons, or a Broadcom since that is also an option on the HP laptops, but it has to be N comptible for our future rollout of Cisco 1250 AP's, but I need to to work at home as well.

Thanks in advance,
Dan

[DanTana]

Ok, I maybe premature now, but I think I have fixed the problem. I set the D-Link 655 to 802.11N only mode and my connection has been stable for the last 60 minutes, which is a record under Vista. I have devices unfortunately, still on B like my Wii so this maybe a problem. At least my laptop has been stable. I'll post more either way keeping you inform and maybe this might help others in the future.

Thanks,
Dan

[ttmcmurry]

D-Link recommends setting your security mode to WPA2 for best performance. 

I'm have a Intel 4965AGN wireless card with Lenovo/Intel driver 12.1.0.14 on Vista Business x64 SP1 and haven't had a moment's trouble with it.

[onebyside]

Dan I replied with my settings in the other thread


40 MHz..not 20 or auto....40

[DanTana]

onebyside,

There is no "40 mhz" setting on my card properties, only 20 mhz or Auto. I did set the 655 to 40 mhz but not the client adapter.

ttmcmurry,

I will definitely try that setting soon. Thanks for the reply.

Dan

[ttmcmurry]

I should have mentioned when you use WPA2, set the cipher type to AES only, not TKIP or both.

[onebyside]

onebyside,

There is no "40 mhz" setting on my card properties, only 20 mhz or Auto. I did set the 655 to 40 mhz but not the client adapter.

Dan

Dan, there is no 40mhz on my adapter either

I set the 655 at 40 mhz and the adapter on auto