[ubuntu-uk] Very odd router connection problem

Mark markwhite at mdpuk.com
Tue Dec 14 16:35:28 GMT 2010

On Tue, 14 Dec 2010 16:32:33 -0000, Gordon Burgess-Parker  
<gbplinux at gmail.com> wrote:

> On 14/12/2010 16:26, John Stevenson wrote:
>> On 14 December 2010 16:20, Gordon Burgess-Parker <gbplinux at gmail.com
>> <mailto:gbplinux at gmail.com>> wrote:
>>     The scenario.
>>     We have two broadband suppliers to our house - on two separate phone
>>     lines, BT, the home supplier and another supplied by the company
>>     my wife
>>     works for.
>>     The router supplied by the company my wife works for is unlimited
>>     traffic, the BT is capped at 10GB per month.
>>     I have two computers - a Windows 7 laptop and a 10.04 Ubuntu  
>> Netbook.
>>     The odd thing is this - if I connect to the company router using a
>>     cable
>>     with the Windows 7 machine, it connects normally and normal internet
>>     operations can be done. The NIC is set to DHCP both for ipv4 and  
>> ipv6.
>>     If however I connect the Netbook via the same cable to the same  
>> router
>>     using the "Automatic" (DHCP) settings both for ipv4 and ipv6 on eth0
>>     there is NO internet access AT ALL! I've tried entering the manual  
>> IP
>>     data but still NO ACCESS at all!
>>     Why should this be and what do people suggest I do to get it to
>>     work? (I
>>     can't access the router at all....)
>> Hello Gordon,
>> I suggest trying without IPV6 enabled, if you have not already done
>> so.  Using the network manager you should be able to set IPV6 to
>> ignore.  Then do a complete restart.
>> I dont know if this wil fix your problem, but it is the first thing I
>> would try.
> Hi John,
> It was set to "ignore" initially and that wouldn't connect either, so
> when I saw that the NIC on the Windows machine was set to DHCP for ipv6,
> I changed it, with still no effect!

Set the netbook mac address to the same as the windows 7 mac address.
The router maybe setup to only allow connection from one mac address.
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