[Techtalk] DNS problem with wireles internet

[David Sumbler]

I have just received a new psiXpda computer - a sort of hand-held PC.
The makers offer it with Windows XP or Ubuntu 9.04; needless to say, I
chose the latter.

The problem I am having is with connecting to the internet.  The device
is connecting wirelessly to my router, and DHCP is working: the computer
can report its own IP number, the router reports the computer's
presence, and I can log into the router from the computer.  So far so
good.  But DNS does not seem to be working.

My desktop PC is connected to the router by an ethernet cable, and is
set to use the router as a DNS server, which has a fixed IP address on
my network.  The router, of course, knows the addresses for my ISP's DNS
servers.

That all works fine, but presumably with a wireless connection a
computer needs automatically to send DNS lookups to the router it is
currently connected to, whatever IP address the router has.  Putting an
IP address for the router into a file on the computer obviously won't
work.  Incidentally, my iPhone works wirelessly with the router, and
doesn't have a problem connecting to the internet.

Unfortunately it is now well out of office hours, so I can't contact the
suppliers of the computer to ask if they know how to solve the problem,
and they can be difficult to get hold of at the best of times.

So can anyone point me in the right direction as to how to get DNS
working?

David

-- 
David Sumbler <david at aeolia.co.uk>