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Sharing files and printers between PCs in a wired network and PCs in wireless network.

We have a network with the following setup:  There are 10 users connected wired to a 16-port Linksys workgroup switch.  This workgroup swtich is connected to a port of an 8-port Linksys BEFSR81 router.  This router is connected to a Cayman DSL modem which connects to the main DSL phone line.  Users are able to access the Internet and share files and printers.  Users are a mix of Windows 2000, XP and Vista.

I have just added a new Linksys WRT150N wireless-N router, and connected it to one of the ports of Linksys BEFSR81 router.  The wireless router is being used by 2 notebook PCs with Windows XP.  The 2 notebook PCs can use the Internet and access each other but cannot access or "see" any of the files and printers of the wired PCs.

What we want to happen is to enable the 2 notebook PCs with wireless network connection to access the files and printers of the wired PCs in the network, and vice versa, i.e., the wired PCs to access the files of the 2 notebook PCs.  The files and printers in all PCs are already shared with permissions also defined.

What do I need to do to make this happen?  Thank you in advance for your help.
2 Solutions
You don't want the new Linksys router, connected to the other router. This divides up the network. You new device should be an Access Point. This add wireless to your network. Your laptops can't see the other devices, because the router they are connected to doesn't know where to look for those devices.
it's possible that the wireless router, though creating a gateway to route the internet access, has placed the 2 notebook pc's on a different subnet to the rest of the computers via it's internal DHCP server. if this is the case, you may need to set the wireless router's DHCP server to "DHCP Relay" mode so that it assigns the routers ip address in the same subnet as all the others (and printers). to test for different subnets, post an ip address from one of the computers connected to the wired switch and post an ip address from one of the notebooks connected to the wireless router.

wrjacintoAuthor Commented:
Thank you for your help and comments.

I was able to resolve the problem by following along the advice of ucando1 and cottsak.  I realized that the wireless router creates another network and I should find a way to put the wireless router in the same subnet as the wired router.  What I did was to disable DHCP in the wireless router and set the local IP address to Lastly, I connected the 8-port BEFSR81 router to port 4 of the wireless router.  Like magic, all resources can be shared between the wired and  wireless computers.

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