BT Fusion Subnet Confusion

Recently I have been trying to sort out some local sharing on a
colleague's work network.

They have BT business broadband and one desktop connected via ethernet
cable and,currently, one laptop connected via WiFi; all internet
access working fine.

Neither computer could see each other and on investigation I found the
router has an address of 192.168.1.254, the desktop (XP) has
192.168.1.64 but for some reason the laptop (Vista) has the address of
192.168.174.64

I have searched the router's configuration page and cannot see how it
got 174.64

I appreciate that there are different set ups for the wired and wifi
section but I cannot see anything that suggests a DHCP issued address
within the range of 192.168.174 rather than 192.168.1

Any clues appreciated.

Geoff Lane

"geffers" <(E-Mail Removed)> wrote in message
news:fb8c7b75-0fb6-4ada-9e7a-(E-Mail Removed)...
> Recently I have been trying to sort out some local sharing on a
> colleague's work network.
>
> They have BT business broadband and one desktop connected via ethernet
> cable and,currently, one laptop connected via WiFi; all internet
> access working fine.
>
> Neither computer could see each other and on investigation I found the
> router has an address of 192.168.1.254, the desktop (XP) has
> 192.168.1.64 but for some reason the laptop (Vista) has the address of
> 192.168.174.64
>
> I have searched the router's configuration page and cannot see how it
> got 174.64
>
> I appreciate that there are different set ups for the wired and wifi
> section but I cannot see anything that suggests a DHCP issued address
> within the range of 192.168.174 rather than 192.168.1
>
> Any clues appreciated.
>
> Geoff Lane

The *first* thing that occurs to me is the laptop might have connected
itself to somebody elses router!
--
Graham

%Profound_observation%

"geffers" <(E-Mail Removed)> wrote in message
news:fb8c7b75-0fb6-4ada-9e7a-(E-Mail Removed)...
> Recently I have been trying to sort out some local sharing on a
> colleague's work network.
>
> They have BT business broadband and one desktop connected via ethernet
> cable and,currently, one laptop connected via WiFi; all internet
> access working fine.
>
> Neither computer could see each other and on investigation I found the
> router has an address of 192.168.1.254, the desktop (XP) has
> 192.168.1.64 but for some reason the laptop (Vista) has the address of
> 192.168.174.64
>
> I have searched the router's configuration page and cannot see how it
> got 174.64
>
> I appreciate that there are different set ups for the wired and wifi
> section but I cannot see anything that suggests a DHCP issued address
> within the range of 192.168.174 rather than 192.168.1
>
> Any clues appreciated.

What is the subnet mask?

--
Graham J

On Jan 3, 7:46 pm, "Graham." <m...@privacy.com> wrote:
> "geffers" <ge...@3lanes.freeserve.co.uk> wrote in message

> > Recently I have been trying to sort out some local sharing on a
> > colleague's work network.

> > Neither computer could see each other and on investigation I found the
> > router has an address of 192.168.1.254, the desktop (XP) has
> > 192.168.1.64 but for some reason the laptop (Vista) has the address of
> > 192.168.174.64

> The *first* thing that occurs to me is the laptop might have connected
> itself to somebody elses router!

Yes, I suspected that also but both computers show up on the router's
summary page, I appear to be able to edit the address for the wired
desktop but no option appears for the laptop.

I am baffled.

Geoff Lane

On Jan 3, 8:08 pm, "Graham J" <gra...@nospam.zen.co.uk> wrote:
> "geffers" <ge...@3lanes.freeserve.co.uk> wrote in message

> > Recently I have been trying to sort out some local sharing on a
> > colleague's work network.

> > I have searched the router's configuration page and cannot see how it
> > got 174.64

> What is the subnet mask?

255.255.255.0

Geoff Lane

"geffers" <(E-Mail Removed)> wrote in message
news:fb8c7b75-0fb6-4ada-9e7a-(E-Mail Removed)...
> Recently I have been trying to sort out some local sharing on a
> colleague's work network.
>
> They have BT business broadband and one desktop connected via ethernet
> cable and,currently, one laptop connected via WiFi; all internet
> access working fine.
>
> Neither computer could see each other and on investigation I found the
> router has an address of 192.168.1.254, the desktop (XP) has
> 192.168.1.64 but for some reason the laptop (Vista) has the address of
> 192.168.174.64
>
> I have searched the router's configuration page and cannot see how it
> got 174.64
>
> I appreciate that there are different set ups for the wired and wifi
> section but I cannot see anything that suggests a DHCP issued address
> within the range of 192.168.174 rather than 192.168.1
>
> Any clues appreciated.
>
> Geoff Lane


Did the laptop use DHCP to get the address or was it previously hardcoded?
Try the 'dos' command ipconfig /renew and see if you get a new address.
Does the Wifi network have a name which you can be sure is not being used by
your neighbour? (Assuming that there are neighbours nearby)

--
Michael Chare

"Michael Chare" <(E-Mail Removed)> wrote in message
news:Geydnaqfz9QI2-(E-Mail Removed)...
> "geffers" <(E-Mail Removed)> wrote in message
> news:fb8c7b75-0fb6-4ada-9e7a-(E-Mail Removed)...
>> Recently I have been trying to sort out some local sharing on a
>> colleague's work network.
>>
>> They have BT business broadband and one desktop connected via ethernet
>> cable and,currently, one laptop connected via WiFi; all internet
>> access working fine.
>>
>> Neither computer could see each other and on investigation I found the
>> router has an address of 192.168.1.254, the desktop (XP) has
>> 192.168.1.64 but for some reason the laptop (Vista) has the address of
>> 192.168.174.64
>>
>> I have searched the router's configuration page and cannot see how it
>> got 174.64
>>
>> I appreciate that there are different set ups for the wired and wifi
>> section but I cannot see anything that suggests a DHCP issued address
>> within the range of 192.168.174 rather than 192.168.1
>>
>> Any clues appreciated.
>>
>> Geoff Lane
>
>
> Did the laptop use DHCP to get the address or was it previously hardcoded?
> Try the 'dos' command ipconfig /renew and see if you get a new address.
> Does the Wifi network have a name which you can be sure is not being used
> by your neighbour? (Assuming that there are neighbours nearby)

Switch off the router and see if the laptop still gets an IP address. Check
with:

ipconfig /release
ipconfig /renew

If it does, traceroute to a popular website such as www.bbc.co.uk and see
how the traffic travels.

What make of router is it? There is no reason why the router should not
contain two DHCP servers, i.e. a separate one for the wireless network. I'm
sure I've seen a router where the DHCP service for the wired network can be
disabled, but not for the wireless network - can't now remember what the
make was ...

--
Graham

Michael Chare wrote:

>> Recently I have been trying to sort out some local sharing on a
>> colleague's work network.

> Did the laptop use DHCP to get the address or was it previously hardcoded?

I'm not too familiar with Vista but it looks like addresses assigned
automatically.

> Try the 'dos' command ipconfig /renew and see if you get a new address.

I tried that when I gave it a static address within the 192.168.1.0
range but then it would connect at all, went back to auto assign and it
got 192.168.174.64 again.

> Does the Wifi network have a name which you can be sure is not being
> used by your neighbour? (Assuming that there are neighbours nearby)

Nothing residential within 400 yards and almost certainly no other
business user within same distance.

Geoff Lane

Graham J wrote:

>>> Recently I have been trying to sort out some local sharing on a
>>> colleague's work network.

> Switch off the router and see if the laptop still gets an IP address. Check
> with:
>
> ipconfig /release
> ipconfig /renew

I'm not at work for a couple of days now so will try that when I return
although I did do ipconfig /renew when I tried a static IP address.

> What make of router is it?

BT badged device

> There is no reason why the router should not
> contain two DHCP servers, i.e. a separate one for the wireless network.

I've had a good look at the router's config pages and can find no
indication of anything other than 192.168.1 being issued.

Geoff Lane

In message <flld2u$3al$(E-Mail Removed)>, Geoff Lane
<(E-Mail Removed)> writes
>I tried that when I gave it a static address within the 192.168.1.0
>range but then it would connect at all, went back to auto assign and it
>got 192.168.174.64 again.

That is weird. Is it getting assigned an IPv6 address?
--
Devs
"Punchdown Pete the old Kroner"
Un autre 4 ans!