samcory
asked on
Wireless no IP address
Please can anyone help, we have a Windows Small Business Server running DHCP. On the network is a wireless internet router providing internet and wireless access.
If I plug connect a PC to the main switch (simple and unmanaged) it gets an IP address.
If I connect a PC to one of the free network connections on the back of the router, it gets an IP address.
If I connect any PC by wireless we can connect with limited access as no IP is handed out!
If I manually add an IP address to the wireless network card we connect with no problem.
Help please
If I plug connect a PC to the main switch (simple and unmanaged) it gets an IP address.
If I connect a PC to one of the free network connections on the back of the router, it gets an IP address.
If I connect any PC by wireless we can connect with limited access as no IP is handed out!
If I manually add an IP address to the wireless network card we connect with no problem.
Help please
This happens quite frequently when there is a typo in the passphrase for the wireless. I have had to try as many as half a dozen times to get it right - all when I was sure my typing was perfect!
ASKER
No its not the firewall, and its not a typo. We changed the router and the same thing happened,
get wireless ip address =no
get wired ip address = yes
We have the same running in another office with no problem.
get wireless ip address =no
get wired ip address = yes
We have the same running in another office with no problem.
Just so we are clear...
I presume that you have tried multiple laptops and they all do the same thing?
What model of router is it?
I presume that you have tried multiple laptops and they all do the same thing?
What model of router is it?
You might need to add a dhcp relay to the router
As BillBondo has suggested there is often also on these routers a number of settings regarding DHCP.
It can be
ON
OFF
DHCP RELAY
Do you have these settings?
It can be
ON
OFF
DHCP RELAY
Do you have these settings?
ASKER
Tried different laptops, iphone and andriod phones, all have the same problem.
DHCP on the router is turned off as it is provided by the SBS2000 server.
The router is a Netgear DGN2200M
The DHCP has only 2 options ON or OFF
DHCP on the router is turned off as it is provided by the SBS2000 server.
The router is a Netgear DGN2200M
The DHCP has only 2 options ON or OFF
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ASKER
I can disable dhcp on the SBS2000, and enable dhcp on the router
The router has an option to get DNS from the WAN or to specify 2 dns servers.
Should I enable the SBSserver ip address in the first one and a wan ip address in the 2nd one?
The router has an option to get DNS from the WAN or to specify 2 dns servers.
Should I enable the SBSserver ip address in the first one and a wan ip address in the 2nd one?
Yep that sounds like it should work.
All clients should then get an IP from the router and but query the SBS for resolving their DNS requests.
You might be better to just leave the SBS as the only DNS server and then make sure that the SBS server can resolve external addresses using the WAN DNS servers...
All clients should then get an IP from the router and but query the SBS for resolving their DNS requests.
You might be better to just leave the SBS as the only DNS server and then make sure that the SBS server can resolve external addresses using the WAN DNS servers...
ASKER
Thanks, I will try that over the weekend when no one is working.
and let you know
and let you know
From what I can tell dhcp relay uses ports 67-68. Open or set a rule to allow them.
Another way would be to connect the server to one of the router's LAN ports instead of to its WAN/Internet port. Then the BOOTP broadcasts should make it across the wireless to wired bridge in the router.
Or, at the bottom of the Basic Settings menu, set NAT to Disable.
Or, at the bottom of the Basic Settings menu, set NAT to Disable.
ASKER
Thanks John
I disabled the DHCP on the server and enabled it on the router and changed the router dns to refer to the server first and then to the router.
That fixed the problem and the wireless is now working correctly.
Thanks for your help
I disabled the DHCP on the server and enabled it on the router and changed the router dns to refer to the server first and then to the router.
That fixed the problem and the wireless is now working correctly.
Thanks for your help
ASKER
Thanks
Sam
Sam
Check whether there is not some kind of Firewall active between the wireless and the wired network on the router. This is a common feature.
Jaggie