Vista "ipv4 connectivity limited"

Hi

We have two Vista PCs connected wirelessly to a BTHomeHub2. Both have been
connecting to the internet fine, until today. My partner now can't get
online. Her machine shows ipv4 connectivity limited. (Both our computers
also show ipv6 limited, but my ipv4 shows "internet" and of course is
connecting fine.)
It reports the signal strength is excellent. Another message says "the
computer is connected to the BTHomeHub2, but does not have access to the
internet."

As I've said, we've had no similar problem before, and have not changed any
settings knowingly.

How can we fix this?

TIA

JonR

On 8/7/2010 12:47 PM, Jon Riley wrote:
> Hi



>
> We have two Vista PCs connected wirelessly to a BTHomeHub2. Both have
> been connecting to the internet fine, until today. My partner now can't
> get online. Her machine shows ipv4 connectivity limited. (Both our
> computers also show ipv6 limited, but my ipv4 shows "internet" and of
> course is connecting fine.)
> It reports the signal strength is excellent. Another message says "the
> computer is connected to the BTHomeHub2, but does not have access to the
> internet."
>
> As I've said, we've had no similar problem before, and have not changed
> any settings knowingly.
>
> How can we fix this?
>
> TIA
>
> JonR
>

Sounds like this is not exactly a "hub", more like a router.

"There are 2 versions of the BT Home Hub 2.0. The A and the B model The
hardware within the HomeHub v2.0A was manufactured by Thomson Speedtouch
who bought up Inventel and all their hardware and software rights. This
model is electronically identical to the Thomson Speedtouch TG797n.

The hardware contained within the HomeHub v2.0B was manufactured by
Siemens's Gigaset division in Germany. The middleware was developed by
Jungo a subsidiary of NDS, and is based on their openRGTM product. The
product is very similar to the smartBox sold by Orange Israel.

Also, source code can be found at
http://www.btyahoo.com/broadband/adh...s/gplcode.html (Maybe) which was
released under the GNU public license. Hopefully someone has the
expertise to pick through this and find the algorithm steps to encode
SSID and network key."


Anyway, There was an old problem (supposedly cured) in Vista. Had to do
with Vista computers taking too long to setup networking with an
external network device such as some routers. A partial cure was to
disable and uninstall IPV6. I believe that other perhaps better methods
were found. I ran into the problem once in late 2007 with a HP laptop
while I was "on the road". Initially the laptop worked well with a
motel's wireless router. The next morning it would not connect to that
particular router, but would connect to a router in the motel office, or
one in the same motel that had a marginal signal level. ???