Mixed wired and wireless network

pts.
Tags:
DataManagement
Hubs
Networking
Networking Equipment
Routers
Wireless
I have an ADSL modem going to a wired router which in turn is connected to 5 PCs. The router is also connected to a wireless router which in turn is connected wirelessly to 2 PCs and a wired connection to another PC. The 5 PCs connected directly to the wired router can see each other over the network but not the 3 which connect to the wireless router while these 3 can see each other but not the original 5. All 8 PCs are configured to access the MSHOME workgroup. All 8 have internet access with the original 5 having automatically assigned IP addresses with the other 3 only being able to access the internet if I assign them particular IP addresses. Can anyone please help me so I can get all 8 to see each other. Any help would be greatly appreciated. Thanks

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It sounds like one of three things is not configured correctly: your default gateway is not set right (obviously the WAP and wired router must have different IP Addresses), your DHCP Server on the WAP is not in the same range or subnet mask as the 5 PCs, or that you do not have routing configured properly if you are using it. I think the most likely source of the problem is that your default gateway is incorrect.

You probably have it wired like the following ASCII art, whereas Inet is the Internet and CM is the cable modem.
Inet—CM—-Router/Switch—-WAP

In this scenario, you’ll want all clients to point to the IP Address of the Router and let the router determine if the traffic needs to go out the WAN interface (CM interface) or back to the local LAN; that is, if you’ve broken down the LAN into multiple subnets.

You haven’t mentioned pinging between these systems at all. If you can successfully ping even when the systems on the WAP are set up for DHCP, then you may have a firewall on the WAP configured to block the standard MS ports for SMB/Netbios and MS Directory Service.

Hope this helps.
SF

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  • Astronomer
    Since you didn't describe the IP arrangement I will make some assumptions. The wired router is a DCHP client to the internet and does NATing for the network behind it. It probably hands out DHCP addresses to the clients behind it. These clients should use this router as their default gateway. Lets call the network behind this router net A. The wireless router has a network for its clients. We will call it network B. It uses a different network range from net A. It probably also hands out DHCP addresses to the clients. They should be using the wireless router as their default gateway. The wireless router has a wired connection on network A. This is a static IP address. The wired router needs to know it can reach network B thru the wireless router's net A IP address. The wireless router needs to know it can reach the internet thru the wired router's net A IP address. In effect, network A is shared by the routers. Does this roughly correspond to your network? If not, we need to know how your network design differs from what I have described. I'm a little confused by your statement that giving static addresses allows the wireless clients to reach the internet. Are you sure your wireless access point is a router? rt
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