7800N Internet Connectivity on new PC

[JamieFish]

Okay, I plugged my desktop into my laptop via ethernet, and the desktop was able to share the internet connection from my laptop with no problems. I then plugged it back into the ethernet cable direct to the router and it works for about 30 seconds before going back to the previous problem. I should note that the direct cable to the router plays fine with my laptop, so the fault probably isn't with that.

This hasn't thrown any light on the issue to me but hopefully might give someone some ideas. Also, if you have any thoughts as to what might be at fault other than the router (network adapter(mobo)?) then let me know and I can post this around some more forums!

[Jimmy06]

Did you do these steps ?

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netsh winsock reset catalog
netsh int ipv4 reset reset.log
netsh int ipv6 reset reset.log

Its sounding more like the router is the cause.

[JamieFish]

Did you do these steps ?

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netsh winsock reset catalog
netsh int ipv4 reset reset.log
netsh int ipv6 reset reset.log

Its sounding more like the router is the cause.

Yep

[billion_fan]

Have you tried a ping test in CMD (command prompt)

(Open command prompt in windows, type ping 8.8.8.8 then enter, also try to ping www.google.co.uk)

Another important thing make sure you disable your wireless client (wireless card)

Finally try and ping 192.168.1.254

Let us know the results

[Tomken]

Try changing the DNS servers in the affected computer to either Google 8.8.8.8 / 8.8.4.4 or Open DNS 208.67.222.222 /208.67.220.220 to see if it will resolve.

There is another set that I use now and again and they are 4.2.2.1 / 4.2.2.2

These are the steps on how to change the DNS servers to whichever you choose should you not have done it before, but try Google's first
http://www.sevenforums.com/tutorials/15 ... s-7-a.html

When you were switching the router and computer off, did you also disconnect the ADSL and power cable for a couple of mins with all computers/device off as well.

If you haven't, then give this a try - it's called a power cycle and while the router is working okay for another computer - sometimes it's just the configuration that needs resetting for a different machine.

Switch just the router on and allow it to initialize before switching just the desktop back on and wiring up.

If you still cannot connect then can you run an ipconfig /all from the cmd prompt and you will need to copy it across to the laptop to copy & paste into your next post along with an ipconfig /all from the laptop.

[tinytim]

I don't suppose the router's firewall has ethernet MAC filtering switched on?

[JamieFish]

Have you tried a ping test in CMD (command prompt)

(Open command prompt in windows, type ping 8.8.8.8 then enter, also try to ping http://www.google.co.uk)

Another important thing make sure you disable your wireless client (wireless card)

Finally try and ping 192.168.1.254

Let us know the results

I'd already tried pinging, but I can confirm there's no response. This desktop doesn't have a wireless card.

I don't suppose the router's firewall has ethernet MAC filtering switched on?

Unfortunately not, just checked.

Try changing the DNS servers in the affected computer to either Google 8.8.8.8 / 8.8.4.4 or Open DNS 208.67.222.222 /208.67.220.220 to see if it will resolve.

Tried this with no luck.

When you were switching the router and computer off, did you also disconnect the ADSL and power cable for a couple of mins with all computers/device off as well.

If you haven't, then give this a try - it's called a power cycle and while the router is working okay for another computer - sometimes it's just the configuration that needs resetting for a different machine.

Switch just the router on and allow it to initialize before switching just the desktop back on and wiring up.

No change with this either.

If you still cannot connect then can you run an ipconfig /all from the cmd prompt and you will need to copy it across to the laptop to copy & paste into your next post along with an ipconfig /all from the laptop.

Here's the content of ipconfig /all:

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C:\Users\Jamie>ipconfig /all

Windows IP Configuration

   Host Name . . . . . . . . . . . . : Jamie-PC
   Primary Dns Suffix  . . . . . . . :
   Node Type . . . . . . . . . . . . : Mixed
   IP Routing Enabled. . . . . . . . : No
   WINS Proxy Enabled. . . . . . . . : No
   DNS Suffix Search List. . . . . . : home.gateway

Ethernet adapter Local Area Connection:

   Connection-specific DNS Suffix  . : home.gateway
   Description . . . . . . . . . . . : Atheros AR8151 PCI-E Gigabit Ethernet Con
troller
   Physical Address. . . . . . . . . : 90-2B-34-54-FB-3B
   DHCP Enabled. . . . . . . . . . . : Yes
   Autoconfiguration Enabled . . . . : Yes
   Link-local IPv6 Address . . . . . : fe80::c166:6883:b073:66b1%11(Preferred)
   IPv4 Address. . . . . . . . . . . : 192.168.1.109(Preferred)
   Subnet Mask . . . . . . . . . . . : 255.255.255.0
   Lease Obtained. . . . . . . . . . : 18 December 2012 12:14:18
   Lease Expires . . . . . . . . . . : 19 December 2012 12:14:17
   Default Gateway . . . . . . . . . : 192.168.1.254
   DHCP Server . . . . . . . . . . . : 192.168.1.254
   DHCPv6 IAID . . . . . . . . . . . : 244329268
   DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-18-0C-0E-59-90-2B-34-54-FB-3B

   DNS Servers . . . . . . . . . . . : 8.8.8.8
                                       8.8.4.4
   NetBIOS over Tcpip. . . . . . . . : Enabled

Tunnel adapter isatap.home.gateway:

   Media State . . . . . . . . . . . : Media disconnected
   Connection-specific DNS Suffix  . : home.gateway
   Description . . . . . . . . . . . : Microsoft ISATAP Adapter
   Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
   DHCP Enabled. . . . . . . . . . . : No
   Autoconfiguration Enabled . . . . : Yes

Tunnel adapter Teredo Tunneling Pseudo-Interface:

   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
   IPv6 Address. . . . . . . . . . . : 2001:0:9d38:6ab8:b0:1ff1:3f57:fe92(Prefer
red)
   Link-local IPv6 Address . . . . . : fe80::b0:1ff1:3f57:fe92%13(Preferred)
   Default Gateway . . . . . . . . . : ::
   NetBIOS over Tcpip. . . . . . . . : Disabled

[billion_fan]

So you didn't get a reply from the routers IP address?? (when pinging the router IP)

Also have you tried to use the EWAN port on the router, and connect your PC to this port??

[JamieFish]

Nope, I don't know how that works either. As you can see from ipconfig, it is the correct router address that we're pinging. The EWAN port behaves the same as the others.

[Tomken]

Can you either run an ipconfig /all on the laptop or log into the router/DHCP table to check which IPv4 address has been assigned to it and that the desktop isn't the same as the laptop when the laptop has been switched off.

The desktop is currently assigned 192.168.1.109 but sometimes assigning a static IP can produce a result whereas the DHCP assigned one doesn't want to play for some reason or other.

As the desktop can connect to the Internet however briefly via the router would suggest that the LAN driver is okay, while changing the Speed & Duplex to one of the other options can sometimes resolve connectivity problems, but I still have the feeling that this somehow relates to your previous Uni connection.

These are accessed via Device Manager/Network Adapter > right click on the LAN Adapter/Properties/Advanced and select Speed & Duplex from the left pane, then use the right dropdown to try the various options.

If you don't get anywhere with that, then can you download and copy across this program http://www.bleepingcomputer.com/download/minitoolbox/ and run it with just these boxes ticked and hopefully they may tell us something.

List last 10 Event Viewer Errors
List Devices (Only Problems)
List Mini Dump Files

Have you run Windows Troubleshooter on this yet ?