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SBS 2008 Wireless clients no Internet

Last Modified: 2012-05-10
SBS 2008 server acting as the DHCP server.
Netgear ProSafe VPN Firewall SRXN3205 (with built-in wireless) is the gateway.
All wired clients are getting IP addresses and are able to browse/access the local network and the Internet. Wireless clients are not getting assigned an IP address and have no network/Itnternet access. How do I get the Netgear to tell the SBS to assign IPs to wireless clients? Or is there a way?
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Andre ThibodeauSenior IT Architect

Sounds like the Wireless Access Point is providing DHCP address on a different network.

What IP subnet is the wired clients getting, and what subnet is wireless client getting?

run IPCONFIG /ALL and look at the address of the DHCP server on both a wired and wireless client and post the results.

What kind of Wireless Access Point are you using?  If this is a Wireless Router, then reconfig the router, turn off DHCP, and plug it in to your LAN using a LAN port on the Wireless Router, do not use the WAN port.

stevenstrickIT Manager


The Netgear is a wireless firewall/router. The DHCP is turned off on the Netgear because the SBS 2008 is acting as the DHCP. There is only one network. The wired clients are getting IPs assigned by the SBS with no problems. The wireless clients are not being assigned an IP at all. When you run IPConfig /all you get the self-assigned IP address even though that computer shows it being connected to the wireless.
Andre ThibodeauSenior IT Architect

For some reason I thought you were using two devices....

Try to manually assign an IP Address to a wireless client.

Can you ping network/internet if you manually assign?

JamesSenior Cloud Infrastructure Engineer

When you have a router with wireless capability, it is not the DHCP on your server that serves the wireless clients. It is the wireless on the router which does this. The router ip address is the gateway address that the dhcp on your server looks to. Remember that the dhcp service does not have wireless capability so this is why it will not lease ip addresses to wireless clients. Enable the wireless on the router and then configure the ip range eg: if your LAN ip schema is 192.168.1.x > make sure that your wireless ip schema is the same. You can configure the ip range for wireless clients on the router eg: - 100, which would give you 50 available ip addresses for your wireless clients.
Senior IT Architect
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JamesSenior Cloud Infrastructure Engineer

You have misunderstood my comment. You are not enabling the dhcp on the router I am talking specifically for the wireless. You have to on the router configure the ip range when you enable wireless. This will then forward the requests to a dhcp server. If there is no range configured for wireless on the router then your dhcp server can no lease ip addresses to the wireless clients.
stevenstrickIT Manager


Turns out that I needed to upgrade the firmware on the Netgear. Once that was done, DHCP relay became available. I set that to the SBS and the wireless clients are now working. Thank you for your help. Much appreciated.

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