D-Link D-Link DSL-2320B: 0x80a40010

Make sure Xbox Live is fully supported in your country: http://www.xbox.com/live/countries

Microsoft is aware of this problem with this sign-in error in most middle-Eastern countries and are working to fix it.

If your country isn't listed here, then I am afraid there is no workaround for this.

Let's just hope this will be resolved so that unsupported countries can access the Xbox services.

Hello!

Can you provide any additional information on your set up and the issue that you're having? What kind of wireless security/encryption is being used on your wireless router?

It's just a single router really,

The router info is in the link

residential.telkom.co.za/.../d-link-dsl

Routers that are Confirmed YES: Netgear WNDR 3400, Netgear WNDR 3700, Netgear WNR 2000, D-Link DIR-655, D-Link DIR-815, D-Link DIR-825, D-Link DGL4500.

There are no Modems/Gateways that are Confirmed YES. If you have cable internet you want to look for a stand alone cable modem. If you have DSL, you want to make sure you have a DSL gateway that you can Bridge.

That particular D-Link router is not listed
support.xbox.com/.../network-hardware-compatible-xbox-live as being compatible with multiple Xbox consoles. That doesn't mean it won't work, but it's unknown whether it will support multiple consoles well. UPnP is essential to multiple consoles; make sure
it's turned on in the router setup,
http://www.pcwintech.com/screenshots-d-link-dsl-2640r-d-link-firmware and that Port Forwarding and DMZ are _not_ turned on. It doesn't look like Port Triggering is available in that router; if a firmware upgrade from D-LINK makes it available, I would strongly
suggest it.