[ubuntu-uk] Lost internet usage in Ubuntu 9.04

[Simon Greenwood]

On 20 July 2010 10:07, David King <linuxman at avoura.com> wrote:

>
>
> Colin Law wrote:
> > Does it work for another user on the PC?  If you have not other user
> > add one using System, Administration, Users and Groups.  A second user
> > is often useful for testing.
> >
> > Colin
> >
> >
> >
> Although my Ubuntu 9.04 has been working okay with accessing the
> Internet recently, this morning when I booted into it, again I had no
> internet access. I could not access the router, although when I looked
> at the Network Connection, it showed an IP address as well as that of
> the router, suggesting that there was no problem connecting to the
> router or for the router to connect to the Internet.
>
> So I set up a new account on Ubuntu 9.04, and logged into that. Straight
> away that user had internet access with nothing blocked, and I could
> access the router and webpages okay in Firefox.
>
> So I then switched user back to my own normal user account and then had
> access to the Internet okay.
>
> So what else should I be looking for to diagnose why my main user
> account cannot access the Internet sometimes?
>
>
>
The thing that immediately came to mind when you first posted this was that
something might be setting the HTTP_PROXY environment variable. Some
applications that access the Internet will acknowledge this and others
don't, and if it's set to a non-existent or unreachable address, some
connectivity will fail and some will work. I found, for example, for reasons
too complex to get into now, that Google Earth will use it and that Firefox
uses its own setting, so if it happens again, open a terminal and type 'env
| grep HTTP_PROXY' and see if there's anything set for it.

Simon

-- 
BBC 6 Music saved! http://www.love6music.com
My CV: http://bit.ly/sfgreenwood_cv
Linkedin: http://www.linkedin.com/in/simonfgreenwood
Twitter: @sfgreenwood
-------------- next part --------------
An HTML attachment was scrubbed...
URL: https://lists.ubuntu.com/archives/ubuntu-uk/attachments/20100720/5560e864/attachment-0001.htm