Sorry for the long post, but I wanted to tell you everything that I have done so far.
We run all HP's a few various Probook and elitebook models, and with all of my 4520s models and a few 4530s, which run win 7 pro 64 bit, I am having the hardest time getting it to connect to the internet from our internal network. I have done everything from running ipconfig /flush dns, /registerdns /release and /renew, resetting the winsock, resetting the tcpip stack, disabling ipv6 via registry, updating drivers, to re installing win 7 from scratch.
Now after I reset the winsock and did the registry edit to disable ipv6 and restarted the computer it seemed to connect, but after another reboot it came up with limited access again. These computers have no problems connecting to our guest or any other wifi network. So I restarted the dns and dhcp services on our server, and made sure there were no errors and that the ip pool wasn't consumed, and ran ipconfig /all on all of the systems in question which in most cases pull all correct dynamic information ip, subnet, dns & dhcp, which they do. I have also tried using static ip, but still doesn't give me internet access.
So here is how the wireless is setup now. We have a cisco small biz wap -N for our internal network, which uses our internal dns and dhcp servers, and then for our guest network, we have a linksys g router using its internal dhcp server and setup to use googles dns servers.
So, I changed and added the wireless g router in each building, because when we had the wap's using a vlan for both wifi networks, i would have to power cycle our 4410n wap every other day. and with the setup now, I haven't had to power cycle the devices for a good month now.
At first I thought it might be the channels so I was playing around with them which seemed to work for as day, but then reverted back. So now I am really stumped, and HP just kept telling me what I had already had done.
So can anyone give me a hand or have any other ideas for me to try, I would greatly appreciate it.