Strange Switch -> Hub -> Wireless Router problem

Hello

I bought an 8-port network switch at the weekend to replace a 5-port hub. I
have too many things to network nowadays and thought a switch would be more
efficient than a hub.

After a bit of jiggery-pokery I have almost everything working fine - all
the wired PC's and laptops, the VoIP box, print server and so on. However, I
have had real problems with my wireless router. If I plug it into the switch
then it cannot see the internet and other machines cannot access it [ping or
web configuration]. Wireless clients cannot access the internet.

The only way I can make it work is to plug the old hub into the back of the
switch and then plug the wireless box into that! The only things plugged
into the hub are the wireless box and the network cable from the switch.
Everything is hunky-dory. If I take the hub out of the way and plug the
wireless router directly into the switch all connection is lost!

In case it helps:

Wireless Router: Buffalo AirStation
8-port switch: Belkin 10/100BT Ethernet Switch
5-port hub: Linksys workgroup Hub

Thanks in advance

Lee




Lee

Lee wrote:
> Hello
>
> I bought an 8-port network switch at the weekend to replace a
> 5-port hub. I have too many things to network nowadays and thought
> a switch would be more efficient than a hub.
>
> After a bit of jiggery-pokery I have almost everything working fine
> - all the wired PC's and laptops, the VoIP box, print server and so
> on. However, I have had real problems with my wireless router. If I
> plug it into the switch then it cannot see the internet and other
> machines cannot access it [ping or web configuration]. Wireless
> clients cannot access the internet.
>
> The only way I can make it work is to plug the old hub into the
> back of the switch and then plug the wireless box into that! The
> only things plugged into the hub are the wireless box and the
> network cable from the switch. Everything is hunky-dory. If I take
> the hub out of the way and plug the wireless router directly into
> the switch all connection is lost!
>
> In case it helps:
>
> Wireless Router: Buffalo AirStation
> 8-port switch: Belkin 10/100BT Ethernet Switch
> 5-port hub: Linksys workgroup Hub
>
> Thanks in advance
>
> Lee

Is your set-up: Modem---->Router--->Switch---->Computers?

--

Travis in Shoreline Washington

"Travis" <(E-Mail Removed)> wrote in message
news:hEgze.20837$H64.1485@trnddc07...
> Lee wrote:
>> Hello
>>
>> I bought an 8-port network switch at the weekend to replace a
>> 5-port hub. I have too many things to network nowadays and thought
>> a switch would be more efficient than a hub.
>>
>> After a bit of jiggery-pokery I have almost everything working fine
>> - all the wired PC's and laptops, the VoIP box, print server and so
>> on. However, I have had real problems with my wireless router. If I
>> plug it into the switch then it cannot see the internet and other
>> machines cannot access it [ping or web configuration]. Wireless
>> clients cannot access the internet. The only way I can make it work is to
>> plug the old hub into the
>> back of the switch and then plug the wireless box into that! The
>> only things plugged into the hub are the wireless box and the
>> network cable from the switch. Everything is hunky-dory. If I take
>> the hub out of the way and plug the wireless router directly into
>> the switch all connection is lost! In case it helps:
>>
>> Wireless Router: Buffalo AirStation
>> 8-port switch: Belkin 10/100BT Ethernet Switch
>> 5-port hub: Linksys workgroup Hub
>>
>> Thanks in advance
>>
>> Lee
>
> Is your set-up: Modem---->Router--->Switch---->Computers?
>
> --
Hi Travis

Not exactly, it goes

Modem ---> Firewall ---> Switch--->Hub--->WirelessRouter--->WirelessLaptops
|------> Wired computers

I would love to get rid of the Hub.

Thanks

Lee

Lee wrote:
> "Travis" <(E-Mail Removed)> wrote in message
> news:hEgze.20837$H64.1485@trnddc07...
> > Lee wrote:
> > > Hello
> > >
> > > I bought an 8-port network switch at the weekend to replace a
> > > 5-port hub. I have too many things to network nowadays and
> > > thought a switch would be more efficient than a hub.
> > >
> > > After a bit of jiggery-pokery I have almost everything working
> > > fine - all the wired PC's and laptops, the VoIP box, print
> > > server and so on. However, I have had real problems with my
> > > wireless router.
> > > If I plug it into the switch then it cannot see the internet and
> > > other machines cannot access it [ping or web configuration].
> > > Wireless clients cannot access the internet. The only way I can
> > > make it
> > > work is to plug the old hub into the
> > > back of the switch and then plug the wireless box into that! The
> > > only things plugged into the hub are the wireless box and the
> > > network cable from the switch. Everything is hunky-dory. If I
> > > take the hub out of the way and plug the wireless router directly
> > > into the switch all connection is lost! In case it helps:
> > >
> > > Wireless Router: Buffalo AirStation
> > > 8-port switch: Belkin 10/100BT Ethernet Switch
> > > 5-port hub: Linksys workgroup Hub
> > >
> > > Thanks in advance
> > >
> > > Lee
> >
> > Is your set-up: Modem---->Router--->Switch---->Computers?
> >
> > --
> Hi Travis
>
> Not exactly, it goes
>
> Modem ---> Firewall --->
>
> Switch--->Hub--->WirelessRouter--->WirelessLaptops |------> Wired
> computers
> I would love to get rid of the Hub.
>
> Thanks
>
> Lee

If your switch is before the router you will be getting too many IP's
from your ISP. Most only allow one unless you are paying for more. All
computers should be connected after the router. If you have more wired
computers/gear than the number of ethernet ports on the router plug the
switch into the router to expand. Why do you have the hub?

--

Travis in Shoreline Washington

"Travis" <(E-Mail Removed)> wrote in message
news:ff%ze.5880$Ll6.5775@trnddc06...
> Lee wrote:
>> Not exactly, it goes
>>
>> Modem ---> Firewall --->
>> Switch--->Hub--->WirelessRouter--->WirelessLaptops
|------> Wired computers
>> I would love to get rid of the Hub.
>>
> If your switch is before the router you will be getting too many IP's from
> your ISP.

No. The ISP connection comes through a Modem and Firewall/router before
hitting the switch.

I should have pointed out that the firewall is also the main router into the
network. So the diagram goes something like this:
|--->Hub--->WirelessRouter--->WirelessLaptops
Modem ---> Firewall/Router ---> Switch |
|------>
Wired computers

> Most only allow one unless you are paying for more. All computers should
> be connected after the router.

They are all insider the firewall/router.

> If you have more wired computers/gear than the number of ethernet ports on
> the router plug the switch into the router to expand.

It is. My Firewall/Router assigns local IP addresses to all devices that are
plugged into the switch.

> Why do you have the hub?

Because that is the only way to get the wireless router to work! I want to
plug the wireless router directly into the switch without the hub but if I
do it dissappears from the network and wireless devices cannot see the
internet [nor even the firewall/router]. I tried adding a cross-over adaptor
to the CAT5 cable but still no joy.

Thanks for trying to help, though. I appreciate it.

L

tried already removing the hub, connecting router to switch and then
resetting all devices from modem upto router?
usually this does the trick....

note: never connect wireless router WAN port to whatever if using "routers
in series" (unless deliberatly creating individual subnets with specific
internal gateways)
so next possible solution might be to connect one LAN port of wireless
router to one LAN port of firewall/router directly or through the switch,
thus using the "internal switches" of firewall/router and router to "bridge"
networks

so it becomes (several possible solutions)

modem
||
V
WAN port
firewall
LAN port
||
V
switch => wired pc's
=> LAN wireless router => WL pc's

or

modem
||
V
WAN port
firewall
LAN port
|| ||
|| V
|| switch ==> wired pc's
V
LAN port
wireless router
||
V
WL pc's

or

modem
||
V
WAN port
firewall
LAN port
||
V
||=== switch ==> wired pc's
V
LAN port
wireless router
||
V
WL pc's




"Lee" <(E-Mail Removed)> wrote in message
news:(E-Mail Removed)...
>
> "Travis" <(E-Mail Removed)> wrote in message
> news:ff%ze.5880$Ll6.5775@trnddc06...
>> Lee wrote:
>>> Not exactly, it goes
>>>
>>> Modem ---> Firewall --->
>>> Switch--->Hub--->WirelessRouter--->WirelessLaptops
> |------> Wired
> computers
>>> I would love to get rid of the Hub.
>>>
>> If your switch is before the router you will be getting too many IP's
>> from your ISP.
>
> No. The ISP connection comes through a Modem and Firewall/router before
> hitting the switch.
>
> I should have pointed out that the firewall is also the main router into
> the network. So the diagram goes something like this:
>
> |--->Hub--->WirelessRouter--->WirelessLaptops
> Modem ---> Firewall/Router ---> Switch |
> |------>
> Wired computers
>
>> Most only allow one unless you are paying for more. All computers should
>> be connected after the router.
>
> They are all insider the firewall/router.
>
>> If you have more wired computers/gear than the number of ethernet ports
>> on the router plug the switch into the router to expand.
>
> It is. My Firewall/Router assigns local IP addresses to all devices that
> are plugged into the switch.
>
>> Why do you have the hub?
>
> Because that is the only way to get the wireless router to work! I want to
> plug the wireless router directly into the switch without the hub but if I
> do it dissappears from the network and wireless devices cannot see the
> internet [nor even the firewall/router]. I tried adding a cross-over
> adaptor to the CAT5 cable but still no joy.
>
> Thanks for trying to help, though. I appreciate it.
>
> L
>

Lee wrote:
> "Travis" <(E-Mail Removed)> wrote in message
> news:ff%ze.5880$Ll6.5775@trnddc06...
> > Lee wrote:
> > > Not exactly, it goes
> > >
> > > Modem ---> Firewall --->
> > > Switch--->Hub--->WirelessRouter--->WirelessLaptops
> |------> Wired
> computers
> > > I would love to get rid of the Hub.
> > >
> > If your switch is before the router you will be getting too many
> > IP's from your ISP.
>
> No. The ISP connection comes through a Modem and Firewall/router
> before
> hitting the switch.
>
> I should have pointed out that the firewall is also the main router
> into the
> network. So the diagram goes something like this:
>
> |--->Hub--->WirelessRouter--->WirelessLaptops Modem --->
>
> Firewall/Router ---> Switch | |------>
> Wired computers
>
> > Most only allow one unless you are paying for more. All
> > computers should be connected after the router.
>
> They are all insider the firewall/router.
>
> > If you have more wired computers/gear than the number of ethernet
> > ports on the router plug the switch into the router to expand.
>
> It is. My Firewall/Router assigns local IP addresses to all devices
> that are
> plugged into the switch.
>
> > Why do you have the hub?
>
> Because that is the only way to get the wireless router to work! I
> want to
> plug the wireless router directly into the switch without the hub
> but if I
> do it dissappears from the network and wireless devices cannot see
> the
> internet [nor even the firewall/router]. I tried adding a
> cross-over adaptor
> to the CAT5 cable but still no joy.
>
> Thanks for trying to help, though. I appreciate it.
>
> L

You are welcome. I have no more thoughts.

--

Travis in Shoreline Washington