mn740 xbox and mac address

I picked up the Microsoft Xbox wireless adapter (MN-740)
today and easily configured it. It connects to my
Linksys Access Point (AP) and obtains a dhcp lease.
Working great.

Then I noticed a strange thing every time I restarted my
Xbox. The wifi adapter would grab a new dhcp lease every
single time. Then I realized the wifi adapter was
connecting to the AP with a different MAC Address every
time too!

Can anyone explain what is going on? Is it the wifi
adapter or is it the xbox causing this problem?

This is driving me crazy as I would like to have my
Access Point locked down by MAC Address authentication
and the max # of dhcp users!

I have a mn-700 working as a WAP, a Linksys befsr41 router, a netgear wg511
pcimia adapter and four different computers with wired connections with four
different NIC cards (el cheapo network everywhere, a couple of integrated
and a very nice but old Nic I pulled from a crapped out server. I repair
computers from my house and regularly connect many different computers for
testing/updating.

Computers run win95, win98, win 2000, winxp and a linux box I sometimes use
as a file server.

Never had a disconnect, other than the well known 802.11x authentication
issue (once the first day I had it).

Of course, I am not using the routing function so perhaps therein lies the
problem?

Not sure if I'm lucky or not, but I am pretty pleased with this device,
which has great range (in my house, anyway), and a strong signal.



"williamv" <(E-Mail Removed)> wrote in message
news:141b01c3f1f8$fbe35930$(E-Mail Removed)...
> I picked up the Microsoft Xbox wireless adapter (MN-740)
> today and easily configured it. It connects to my
> Linksys Access Point (AP) and obtains a dhcp lease.
> Working great.
>
> Then I noticed a strange thing every time I restarted my
> Xbox. The wifi adapter would grab a new dhcp lease every
> single time. Then I realized the wifi adapter was
> connecting to the AP with a different MAC Address every
> time too!
>
> Can anyone explain what is going on? Is it the wifi
> adapter or is it the xbox causing this problem?
>
> This is driving me crazy as I would like to have my
> Access Point locked down by MAC Address authentication
> and the max # of dhcp users!

Hmmm... First, I'd question the lease time for your ip addresses. Maybe you
have a very small interval of time before the lease runs out? I have the
MN-820 (kit with mn700 WiFi router and mn-720 Wireless notebook adapter) as
well as the xbox mn-740 game adapter (basically a bridge). I've had no
problems with using mac address filtering and my address doesn't change.

You might want to note that if you're gonna filter by mac address, it's not
just the mac of the 740 you'll need to enter into your filtering table, but
also the mac of the xbox ethernet adapter. You can get the address of both
by looking at your dhcp clients list in your router. It should show
everything you're serving. You can also get it from the xbox itself through
the dashboard.

I'm not sure that this info helps, but give it a shot.

Jim

"williamv" <(E-Mail Removed)> wrote in message
news:141b01c3f1f8$fbe35930$(E-Mail Removed)...
> I picked up the Microsoft Xbox wireless adapter (MN-740)
> today and easily configured it. It connects to my
> Linksys Access Point (AP) and obtains a dhcp lease.
> Working great.
>
> Then I noticed a strange thing every time I restarted my
> Xbox. The wifi adapter would grab a new dhcp lease every
> single time. Then I realized the wifi adapter was
> connecting to the AP with a different MAC Address every
> time too!
>
> Can anyone explain what is going on? Is it the wifi
> adapter or is it the xbox causing this problem?
>
> This is driving me crazy as I would like to have my
> Access Point locked down by MAC Address authentication
> and the max # of dhcp users!