No network access for Xbox 360 (Failed IP Address)

Leinkreig · 22 Sep 2013

Hey there.
I've encountered a problem when connecting my laptop to my Xbox 360 recently; it no longer allows any connection to the network. I use an Ethernet cable to connect them and often use it to then watch videos or play music from my laptop to my Xbox with either the default Xbox 'System Video Player' or Windows Media Center (and have been doing so for quite a while), though it's suddenly no longer working.

As far as I can tell so far, the problem arose straight after my laptop updated through Windows Update, though I'm unable to use System Restore. I've tried everything I could think of to fix the problem; diagnosing it, disabling it then enabling it once more, configuring the Ethernet cable - everything, but nothing seems to be working.
When I use the 'Test PC Connection' on my Xbox it fails while trying to connect to the actual network, and when I click 'More Info' I get "IP Address Error" telling me to unplug the router/modem for 30 seconds, but that hasn't worked.
I've seen other threads similar to this before where people tell them to manually set the IP address and such, but I don't know how to do it on my Xbox (or on my laptop). I have no idea what the Subnet Mask or Gateway Address would be, so I'm completely befuddled.

Also, in the Network and Sharing Center, the network for my Xbox comes up as 'Unidentified network', 'Public network' and says 'No Internet Access', but it always says that anyway. When I open up the status of the Local Area Connection (for the Ethernet cable/Xbox 360) it says 'IPv4 connectivity: No Internet Access' but it also says 'IPv6 connectivity: No network access'.
I just can't quite figure out what to do; especially since it worked before.

If anyone can provide some assistance, it'd be greatly appreciated.
(Also, if you require screenshots of things or such, I'll provide 'em. I just aren't sure what I need to provide.)

Edit::
Also, I forgot to mention; my Firewall's been turned off too, so it's not like that's getting in the way of the connection (as far as I'm aware).

2xg · 23 Sep 2013

Welcome to Seven Forums,

Have you tried moving the ethernet cable coming from the Xbox the router's ethernet port? I would also suggest trying a different ethernet cable if you have not tried this yet.

Leinkreig · 23 Sep 2013

Thanks for the welcome (and for a reply)!

Yeah, I've tried both of those things; I've also tried connecting it to a different Xbox to see if it was my Xbox at fault, but once again I had no luck.

*Also, with regards to my earlier comment: "the problem arose straight after my laptop updated through Windows Update", after remembering correctly I believe that isn't actually the case. I tried connecting my laptop up to a different Xbox so my Dad could connect to the internet and update his through my WiFi like I usually do with my own and wasn't able to (I had the same problem with that one as I'm having now), but I didn't actually realize it was the same thing (silly me).

2xg · 23 Sep 2013

Go ahead and try assigning Static IP on your Xbox first, here's how.

Is your computer able to connect to the internet?

Leinkreig · 23 Sep 2013

Unfortunately I don't think that method will work for me; I have internet, but I don't have an actual router connected to the internet. I use my phone as a WiFi hotspot and connect it to my laptop when I wish to use the internet, but that's it.
Does this mean I won't be able to fix the problem unless I obtain an internet-connected router?

(Thanks for the reply!)

Wajiema · 23 Sep 2013

Have you tried to put ICS on your wireless card so it will share the connection with the Ethernet port.

Leinkreig · 23 Sep 2013

As far as I'm aware, I don't own a wireless card.

Wajiema · 23 Sep 2013

so how do you connect to your phone from your laptop, is it a usb dongle. If so it should still show up in your network connections. The thing is something has to give an IP address to your xbox unless you have set it up for static IP then you have to know the correct settings.

Leinkreig · 23 Sep 2013

I use WiFi Hotspot on my phone, then connect through WiFi to get internet on my laptop.

Also, after looking around a bit more on my laptop I managed to find the IP Address to both my laptop and phone, along with the Subnet Mask, though it's still not working. I've set it up like this on my Xbox:

IP Settings Manual
IP Address 192.168.43.227 (being the IP Address of my laptop)
Subnet Mask 255.255.255.0
Gateway 192.168.43.1 (being the IP Address of my phone)

But all it does is the same as before.
From what I can tell I'm obviously doing something wrong or you need to use an actual router connected to the internet and plugged in through an Ethernet cable rather than using a phone WiFi hotspot, but I don't know.

Wajiema · 23 Sep 2013

Now we're getting some where. First you can not have 2 devices on the same network with the same IP. So leave your laptop IP alone and change the IP of your Xbox to
IP:192.168.43.231
subnet:255.255.255.0
Gateway:192.168.43.1
DNS:192.168.43.1
192.168.43.227
try that and see if anything happens