Vista wireless/wired network sharing

Hi,

I've been fighting a bit with a Vista Home network consisting of a
desktop PC and laptop both running Vista Home Premium, and a Canon
MP600R printer. Desktop and Canon are hard wired to a Zyxel 660HW-T1
router, the laptop uses a wireless connection.

Both laptop and desktop can surf the web no problems.
Both laptop and desktop can ping the router.
Laptop and desktop cannot ping each other - either timing out, or
occasionally 'destination host unreachable' messages
Desktop can ping the printer
Laptop cannot ping the printer.
Router can ping both laptop and desktop
The Canon printer is a network printer, and the desktop can print to it,
but the laptop cannot.
When I set up the printer I originally used the laptop, but it could not
find the printer. I then hard wired it in to the router, and it found it
fine.

I've recently set up a similar system, but using XP machines with no
hassle at all.

Network discovery is switched on in both laptop and desktop
All software firewalls are turned off - I've not touched the router, as
I've never had to do anything with it before.

I'm due back at the client over the next few days, and will try my XP
laptop wirelessly (ran out of time this afternoon). In the meantime, any
help would be much appreciated.

Cheers
--
Jim McLaren

Jim McLaren wrote:
> Hi,
>
> I've been fighting a bit with a Vista Home network consisting of a
> desktop PC and laptop both running Vista Home Premium, and a Canon
> MP600R printer. Desktop and Canon are hard wired to a Zyxel 660HW-T1
> router, the laptop uses a wireless connection.
>
> Both laptop and desktop can surf the web no problems.
> Both laptop and desktop can ping the router.
> Laptop and desktop cannot ping each other - either timing out, or
> occasionally 'destination host unreachable' messages
> Desktop can ping the printer
> Laptop cannot ping the printer.
> Router can ping both laptop and desktop
> The Canon printer is a network printer, and the desktop can print to it,
> but the laptop cannot.
> When I set up the printer I originally used the laptop, but it could not
> find the printer. I then hard wired it in to the router, and it found it
> fine.

Well, I finally got it all working, but I don't really understand *why*
it now works. The router is set to DHCP, and it appeared to be working
fine, but as I said, the laptop could not ping the desktop and vice
versa. I tried a different router, and the problem was the same.
However, if I reserve addresses in the router IP range for the desktop,
laptop and printer everything works. All machines can ping each other,
and I can share files, use the printer from the laptop, the works.

Can anyone enlighten me as to why? :-)

Cheers.

--
Jim McLaren