PC wont connect - Mac will

Joe 90 · 26-06-2010, 00:46

I've no idea of whats going wrong so I'll try and explain what i've got here.

Our network consists of our BeBox downstairs which is our main router connected to the phone line. This has one of those plug network port things which runs up to the first floor where I have a switch which serves;
- Mac
- PC
- Xbox
- DD-WRT router

My 2nd router is only connected through the LAN ports in order to boost WiFi & connect my xbox on the floor above.

The problem which I can't figure out comes from Windows Vista. As you might expect! OS X works fine, connects to the BeBox downstairs over WiFi & Ethernet. However today I've noticed that the PC has issues. I don't know whats changed, its been working fine for weeks. But in network connections its got 'multiple networks' and picks up the gateway for the BeBox but a local only connection!

I think I can see the problem. The PC's ethernet is picking up a connection the the DD-WRT & its wifi is on the BeBox. However if its on the bebox, I'd have thought it'd pick up the internets.

I don't really know where the fix is, but would like to get my mac back to being my mac which people are too afraid of to use...

Burble · 26-06-2010, 09:14

So the PC is getting an IP address and gateway from DD-WRT rather than the BeBox?

If so, log in to the web management interface on DD-WRT and disable the DHCP server, that should sort it.

Joe 90 · 26-06-2010, 10:47

Yeah last night it was connected to both, one on each interface, now it was only connected to the dd-wrt. odd though as if my iphone or xbox are connected to that they have no issues with the IP they pick up.

Either way I swapped to a DHCP forwarder and the PC has picked up the BeBox. Hopefully my phone & xbox still work!

Thanks, these are things I'm shocked I can't think of myself after a few beers

Burble · 26-06-2010, 10:51

If you're only using the LAN ports on the DD-WRT box then you don't even need a DHCP forwarder set. I'd be inclined to disable it since you effectively have 2 DHCP servers running on the LAN, admittedly one is just doing DHCP relay but having multiple DHCP servers on a single physical LAN can cause strange issues.

26-06-2010, 00:46	#1
Joe 90 Absinthe Join Date: Jan 2007 Location: Chester Posts: 2,345	PC wont connect - Mac will I've no idea of whats going wrong so I'll try and explain what i've got here. Our network consists of our BeBox downstairs which is our main router connected to the phone line. This has one of those plug network port things which runs up to the first floor where I have a switch which serves; - Mac - PC - Xbox - DD-WRT router My 2nd router is only connected through the LAN ports in order to boost WiFi & connect my xbox on the floor above. The problem which I can't figure out comes from Windows Vista. As you might expect! OS X works fine, connects to the BeBox downstairs over WiFi & Ethernet. However today I've noticed that the PC has issues. I don't know whats changed, its been working fine for weeks. But in network connections its got 'multiple networks' and picks up the gateway for the BeBox but a local only connection! I think I can see the problem. The PC's ethernet is picking up a connection the the DD-WRT & its wifi is on the BeBox. However if its on the bebox, I'd have thought it'd pick up the internets. I don't really know where the fix is, but would like to get my mac back to being my mac which people are too afraid of to use... __________________ 360 Blog \| Join GiffGaff \| Twitter

26-06-2010, 10:47	#3
Joe 90 Absinthe Join Date: Jan 2007 Location: Chester Posts: 2,345	Yeah last night it was connected to both, one on each interface, now it was only connected to the dd-wrt. odd though as if my iphone or xbox are connected to that they have no issues with the IP they pick up. Either way I swapped to a DHCP forwarder and the PC has picked up the BeBox. Hopefully my phone & xbox still work! Thanks, these are things I'm shocked I can't think of myself after a few beers __________________ 360 Blog \| Join GiffGaff \| Twitter

26-06-2010, 09:14	#2
Burble Rocket Fuel Join Date: Jul 2006 Posts: 7,826	So the PC is getting an IP address and gateway from DD-WRT rather than the BeBox? If so, log in to the web management interface on DD-WRT and disable the DHCP server, that should sort it.

26-06-2010, 10:51	#4
Burble Rocket Fuel Join Date: Jul 2006 Posts: 7,826	If you're only using the LAN ports on the DD-WRT box then you don't even need a DHCP forwarder set. I'd be inclined to disable it since you effectively have 2 DHCP servers running on the LAN, admittedly one is just doing DHCP relay but having multiple DHCP servers on a single physical LAN can cause strange issues.