Network issue!

AgnessGP · Aug 21, 2012

Hi All,

Just got a weird problem.

I have my PC configured in dual boot (XP/Windows 7) and as of last week, winsows 7 is no longer establishing an internet connection, whereas XP is fine.

I cannot access the router via IP either (windows 7).

Routers have been restarted, wireless connection is fine.

Microsoft network diagnosis picks up nothing, and unfortunately, i've not had many problems with networks so fault finding here is a bit rusty.

Only problems I have had is since using the BT Homehub as part of my fibre package, otherwise, I prefer netgear anyday.

My setup (s*** diagram)

Any ideas?

ChrisUK · Aug 21, 2012

Can you copy and paste the output from "ipconfig /all" from both your XP and your Windows 7 install?

Start -> Run -> CMD

then

ipconfig /all (followed by enter)

AgnessGP · Aug 21, 2012

XP:

Windows IP Configuration
Host Name . . . . . . . . . . . . : gamer
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Unknown
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No
Ethernet adapter Local Area Connection 6:
Media State . . . . . . . . . . . : Media disconnected
Description . . . . . . . . . . . : Realtek PCIe GBE Family
Physical Address. . . . . . . . . : 20-CF-30-46-77-22
Ethernet adapter Local Area Connection 7:
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Realtek PCIe GBE Family
2
Physical Address. . . . . . . . . : 20-CF-30-46-77-F7
Dhcp Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
IP Address. . . . . . . . . . . . : 192.168.1.71
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . : 192.168.1.254
DHCP Server . . . . . . . . . . . : 192.168.1.254
DNS Servers . . . . . . . . . . . : 192.168.1.254
192.168.1.254
Lease Obtained. . . . . . . . . . : 21 August 2012 14:06:45
Lease Expires . . . . . . . . . . : 22 August 2012 14:06:45

Just switching to 7 now....aaah I remember this stuff from a bit of CCNA I did..subnet masking etc etc..2 mins lol.

Windows 7:

Windows IP Configuration
Host Name . . . . . . . . . . . . : Sam-PC
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Hybrid
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No
Ethernet adapter Local Area Connection 2:
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Realtek PCIe GBE Family Controller #2
Physical Address. . . . . . . . . : 20-CF-30-46-77-F7
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Link-local IPv6 Address . . . . . : fe80::88e4:d87e:d177:350f%12(Preferred)
IPv4 Address. . . . . . . . . . . : 192.168.1.71(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Lease Obtained. . . . . . . . . . : 21 August 2012 14:18:31
Lease Expires . . . . . . . . . . : 22 August 2012 14:18:31
Default Gateway . . . . . . . . . : 192.168.1.254
DHCP Server . . . . . . . . . . . : 192.168.1.254
DHCPv6 IAID . . . . . . . . . . . : 337694512
DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-12-E3-BB-91-00-15-F2-F4-B5-BE
DNS Servers . . . . . . . . . . . : 192.168.1.254
192.168.1.254
NetBIOS over Tcpip. . . . . . . . : Enabled
Ethernet adapter Local Area Connection:
Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Realtek PCIe GBE Family Controller
Physical Address. . . . . . . . . : 20-CF-30-46-77-22
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Tunnel adapter isatap.{344D22F3-E374-47FE-A3B5-188B02A22E6A}:
Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft ISATAP Adapter
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
Tunnel adapter Local Area Connection* 12:
Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Teredo Tunneling Pseudo-Interface
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

jenks69 · Aug 21, 2012

What is the router doing, also what make and model is it?

I am confused... the home hub is a router and I'd expect you to plug your Pc's / laptops etc into that

AgnessGP · Aug 21, 2012

@jenks69 sorry, the 'router' is actually a modem. My PC and 'Modem' are plugged into the BT Homehub.

The router etc is fully functional, hence why I am online now on XP

jenks69 · Aug 21, 2012

Is it like this?

TallTom · Aug 21, 2012

Confused why you need a modem and a homehub, is the home hub not a modem/router in one box anyway!

You have an IP address and should have connectivity on the windows 7 machine, have you added or changed anything recently? Have you done the simple things like ping request to the home hub/router and then a ping request to google etc

jenks69 · Aug 21, 2012

TallTom said:
Confused why you need a modem and a homehub, is the home hub not a modem/router in one box anyway!

You have an IP address and should have connectivity on the windows 7 machine, have you added or changed anything recently? Have you done the simple things like ping request to the home hub/router and then a ping request to google etc

My understanding is Infinity users need the extra modem to bridge the homehub to the infinity network.

dombooth · Aug 21, 2012

jenks69 said:
My understanding is Infinity users need the extra modem to bridge the homehub to the infinity network.

As far as I know it does.

Have you tried changing the IP on the W7 pc?

Dom

Numptey · Aug 21, 2012

Try restore as an update may have changed it, are you using Microsoft Security Essentials? My Windows does this all the time with the Virgin super dupa pile of crap they gave me, they call it superhub, let me tell you it aint no super nothing. It wont go through a brick wall 10 feet away

ChrisUK · Aug 21, 2012

dombooth said:
As far as I know it does.

Have you tried changing the IP on the W7 pc?

Dom

It does, It's a very basic VDSL modem with Ethernet passthrough. All of the Authentication etc is done on the homehub / router.

ChrisUK · Aug 21, 2012

And to OP. Try "ipconfig /release & ipconfig /renew" once complete "ipconfig /flushdns"

If complete and still no go can you type "route print" and paste the output.

AgnessGP · Aug 21, 2012

jenks69 said:
Is it like this?

Bang on mate!

Numptey said:
Try restore as an update may have changed it, are you using Microsoft Security Essentials? My Windows does this all the time with the Virgin super dupa pile of crap they gave me, they call it superhub, let me tell you it aint no super nothing. It wont go through a brick wall 10 feet away

Good suggestion but I have all updates to alert me and only choose the ones I need. However, knowing microsoft, something will have changed without my say so. Going to try Chris's suggestion below and if not, resotre is needed.

ChrisUK said:
And to OP. Try "ipconfig /release & ipconfig /renew" once complete "ipconfig /flushdns"

If complete and still no go can you type "route print" and paste the output.

cheers chris, will try now.

Numptey · Aug 21, 2012

Restore is pretty straight forward and doesnt change many things on your system, but then I dont put much on mine at home. Chris is way above my understanding he might as well be speaking spanish lol

ChrisUK · Aug 21, 2012

System restore should be a last resort in most cases. It can break things especially if it's an old restore point.

AgnessGP · Aug 21, 2012

right mate, no success. But heres 'route print'.

Reminds me of doing CCNA last year, can hardly remember it though

===========================================================================
Interface List
12...20 cf 30 46 77 f7 ......Realtek PCIe GBE Family Controller #2
11...20 cf 30 46 77 22 ......Realtek PCIe GBE Family Controller
1...........................Software Loopback Interface 1
15...00 00 00 00 00 00 00 e0 Microsoft ISATAP Adapter
10...00 00 00 00 00 00 00 e0 Teredo Tunneling Pseudo-Interface
30...00 00 00 00 00 00 00 e0 Microsoft ISATAP Adapter #2
===========================================================================
IPv4 Route Table
===========================================================================
Active Routes:
Network Destination Netmask Gateway Interface Metric
0.0.0.0 0.0.0.0 192.168.1.254 192.168.1.71 20
127.0.0.0 255.0.0.0 On-link 127.0.0.1 306
127.0.0.1 255.255.255.255 On-link 127.0.0.1 306
127.255.255.255 255.255.255.255 On-link 127.0.0.1 306
192.168.1.0 255.255.255.0 On-link 192.168.1.71 276
192.168.1.71 255.255.255.255 On-link 192.168.1.71 276
192.168.1.255 255.255.255.255 On-link 192.168.1.71 276
224.0.0.0 240.0.0.0 On-link 127.0.0.1 306
224.0.0.0 240.0.0.0 On-link 192.168.1.71 276
255.255.255.255 255.255.255.255 On-link 127.0.0.1 306
255.255.255.255 255.255.255.255 On-link 192.168.1.71 276
===========================================================================
Persistent Routes:
None
IPv6 Route Table
===========================================================================
Active Routes:
If Metric Network Destination Gateway
1 306 ::1/128 On-link
12 276 fe80::/64 On-link
12 276 fe80::88e4:d87e:d177:350f/128
On-link
1 306 ff00::/8 On-link
12 276 ff00::/8 On-link
===========================================================================
Persistent Routes:
None

Numptey · Aug 21, 2012

I only use new retore points Chris, but your right I thought we all restored all the time. But my wife touches my PC and it goes wrong a lot. Luckily we have an 8 year old to fix it for her as she doesn't have a scooby

AgnessGP · Aug 21, 2012

any ideas chris? see my above post

ChrisUK · Aug 22, 2012

If it where me next I'd try:-

1.) Try your other network interface. I notice you have two listed.

2.) Can you ping anything? LAN / WAN. Can you also try nslookup and try and resolve google.co.uk

3.) Try setting a static IP on the LAN of:-

IP: 192.168.1.210
Subnet Mask: 255.255.255.0
GW: 192.168.1.254

Primary DNS: 192.168.1.254 (your router should use DNS pass-through to ISP DNS Servers)
Secondary DNS: 8.8.8.8 (Google's Primary Public DNS Server)

Go into advanced TCP/IP V4 properties and set the gateway metric to 10 as shown in attachment.

ChrisUK · Aug 22, 2012

If that lot doesn't work it's time to reset the TCP/IP Stack:-

Microsoft KB299357 said:
The reset command is available in the IP context of the NetShell utility. Follow these steps to use the reset command to reset TCP/IP manually:

1.) To open a command prompt, click Start and then type CMD in the Search programs and files.

2.) Right-click CMD.exe icon in Programs and choose Run as administrator.
3.) When the User Account Control box pop up, click Yes.
4.) At the command prompt, copy and paste (or type) the following command and then press ENTER:

netsh int ip reset c:\resetlog.txt

Note If you do not want to specify a directory path for the log file, use the following command:

netsh int ip reset resetlog.txt

Reboot the computer.

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