Wireless-N-Adaptor can't connect to 5 GHz Networks anymore after failed dashboard-update.

Hi,

Please read:- forums.xbox.com/.../9.aspx

And post back your details in full (the bits that are in bold on that post) so that people may help

If you are wireless can you also state whether you are using the white or black external adapter or the Xbox 360S Internal adapter

Thanks

Hello Shad0wmanUK, that link you suggusted doesn't apply to my problem. I do not have connection problems. My 2,5GHz connection works fine. And I am using the black external adapter. The Wireless-N-adapter is the black external adapter. I have a first generation XBOX 360.The problem is, that since the failed and then successfully resumed system-update, the adapter refuses to find 5GHz-networks, which it did find before.

Hi,

The link does apply :) that link is about capturing all of the info about your set-up to help us troubleshoot the issue, the make/model of router etc etc so if you could post back your details it will help

What Country/State/Province do you live in?

Austria - Tyrol

Modem brand & model number:

IKB-Fiber-Optic Modem - Allied Telesys Multiservice-Gateway

Router brand & model number:

Apple Airport Extrem 802.11n

Network Connection Type: Wireless/Wired

Simultaneous Dual-Wireless-N 2,4 GHz and 5 GHz

If Wireless, what type of encryption are you using?

WPA2

If Wireless, are you using a white or black external adapter, or an internal (Xbox 360S) adapter?

Black external adapter

Things you have tried:

Search for networks.

Manually entering SSID of the 5Ghz-network.

Is UPnP Enabled? Yes/no/Unknown

Yes

Is NAT Type Open?

NAT Type 2

Any Error Codes you encounter:

Yes. After failed system update. Didn't record code. Connection to 2,4 GHz works fine. 5 GHz-network not show anymore and manual SSID-entering: Doesn't find 5 GHz-network (did so before automatically).

What type of internet do you have? Cable/DSL/T1/3G?

100 Mbit PPPoE Fiber-Optic-Connection.

Who is your ISP(Internet Service Provider)?

fiber@ikbnet www.ikbnet.at

When you run "Test Xbox LIVE connection" what is the exact message shown on screen?

Everything working perfectly over 2,4 GHz

THANK YOU!

Thanks,

I appreciate you could pick up 5Ghz before but its not an uncommon issue, some routers just don't work:- www.unofficialguidetolive.co.uk/.../166-wireless-gaming-official-wireless-adapter-incompatibility-list

Is the Airport running the very latest version of firmware?

Yes. It is. And everything worked perfectly before. Nothing changed. So I don't get it, why it won't anymore.

What about firmware have you checked on their website (not via the router) for an update?

Yes. Firmware is up-to-date and wasn't changed in before or after the XBOX 360 system update. It is not the router. It is the XBOX 360.

Well there's nothing you can change on the Xbox I'm afraid. I agree its certainly a sticky one because it worked before, but that Xbox will almost certainly work at 5Ghz with another router.  I think your at an impass mate you can't roll back the system update :|

I guess so. But thank you very much for your effort and always so quick response! It is nice to know that there is someone out there to help.