Need help joining 2 LAN w/ different subnets

[60b3r]

Some weeks ago my home network cable to Office PC (WinXP) was bitten by rats right in the middle into half. Here is the condition of the network before the "accident", was running flawlessly without any issues:

I reconnect them by using WiFi Router (since I also need a wireless conn for my laptop—Win7).
The network now look like this:

Sadly, this divide my network into two subnets, 192.168.1x and 192.168.2.x. The problem is:
1. My PC (192.168.1.2) can ping 192.168.2.x
2. Office PC (192.168.2.2) can NOT ping 192.168.1.x
3. When I disable DHCP and/or NAT in the WiFi Router (like people in the forums suggested) my mobile phones, laptop and tablet cannot obtain IP address and computers in 192.168.2.x cannot connect to internet.
4. The computer within the same subnet can see each other (192.168.1.x can see 192.168.1.x, 192.168.2.x can see 192.168.2.x)
5. Computers over different subnet don't show on explorer (192.168.1.x cannot see 192.168.2.x and vice versa)
6. Cannot play games, since IP address are reported to be the same (at night me and my brother play using my PC—Win8 and Office PC—WinXP, before all of this we have no issues)

Computers in 192.168.1.x have 192.168.1.1 as default gateway
Computers in 192.168.2.x have 192.168.2.1 as default gateway
Subnet mask in both subnet computers are set into 255.255.0.0

I am sure this have nothing to do with OS. Please help me configure the network, I have zero knowledge in TCP/IP setup. I have contacted my IT teachers at school but they didn't know how to bridge connection in 2 subnets. Thanks.

 

[ch33zw1z]

Setup the WiFi router as a WAP:

http://www.ezlan.net/router_AP.html

This will put it all back on the main routers network.

 

[60b3r]

Thanks for quick reply. I will give it a hot and will post any update asap.

 

[ch33zw1z]

No problem. Post back any questions. There's quite a few threads on the same topic here in the network sub-forum. It's something we discuss often it seems

 

[60b3r]

so guys I resolved the issue, but it brings up new problem.
so yesterday all I have to do is to unplug the UTP cable off the main port WIFI router and reconnect it to the regular port.

The Office computer (now 192.168.1.103) can now connect to my PC (192.168.1.2). The new problem(s) are:
1. WIFI connected laptops do not have fixed IP address now, since DHCP disabled.
2. The WIFI router IP address is still 192.168.2.1 and its configuration menu cannot be accessed (it says taking too long to respond in browser)

Any suggestion? Thanks

 

[QuietDad]

Take the laptop and plug it directly into the WIFI router with an ethernet cable or take the WIFI router to anyone of the PCs, Plug it in, configure it and put it back.

 

[ch33zw1z]

I'll answer 2 first:

Disconnect everything from the WIFI router. Pick a workstation and manually change the IP to 192.168.2.2, then connecto to teh WIFI router. You need to change the IP on the WIFI router to something on the same network as the main router, but outside of the DHCP range. like: 192.168.1.2, subnet mask 255.255.255.0, no default gateway required.

So, while you're in the WIFI router, disable DNS, disable DHCP, disable firewall, disable WAN

Save and reboot

Now connect a cable from one of the LAN ports on the main router to a LAN port on the WIFI router

Reboot all the clients behind the WIFI router (now configured as a WAP) one at a time, they should pull a DHCP address from the main router on the 192.168.1.x network instead.

congrats, you've just configured a SOHO router as a WAP. this will also clear up question 1.