Urgent network help needed

[Timothy Murphy]

Rick Stevens wrote:

> On 07/08/2013 02:00 PM, Timothy Murphy issued this missive:
>> I am away from home.
>> My wife at home cannot access the internet with her laptop.
>> I suspect the problem is in the home server I am responsible for.
>>
>> In brief, the internet can be accessed from the CentOS-6.4 server.
>> Her laptop accesses a WiFi router which is connected to the server.
>> I have to confess that she is the only household member
>> running Windows - Windows XP in her case.
>> Connect to=>Show All Connections shows the WiFi connection is good.
>> But she cannot access the internet, or ping google, etc.
>>
>> I can get access and login to the server from far away.
>> I see nothing wrong.
>> I have restarted the network, dhcpd and shorewall services.
>> I checked that forwarding is on.
>> I can ping my wife's laptop from the server.
>>
>> Her setup has been working fine for months if not years,
>> accessing her work over VPN.
>> But now she is just trying to browse.
>>
>> I'm not sure what tests I can run to diagnose the problem.
>> Any suggestions very gratefully received.
>> They may save a marriage ...

Thanks very much for your response.

> Step 1: Reboot the WiFi router. It may have lunched its routing tables.
> It happen

We tried that.

> Step 2: Reboot her laptop. Not a warm boot (ctrl-alt-del), but
> a full-tilt cold boot from power off. You say she uses a VPN to contact
> work, and it's often that the VPN clients leave crumbs in Windows'
> routing and DNS lookup tables.

I'll suggest that to her.

Thanks
	Tim

-- 
Timothy Murphy  
e-mail: gayleard /at/ eircom.net
tel: +353-86-2336090, +353-1-2842366
School of Mathematics, Trinity College, Dublin 2, Ireland