Try assigning a static IP address of 192.168.x.x to a computer with the gateway being the router and plug it into a LAN port on the router.
At a previous job, I was able to change a linksys wireless router into a wireless switch by doing the following:
Setup Linksys Wireless Router as a Switch
1. Change working mode to “gateway” instead of “router” ?Save
2. disable DHCP?Save
3. make sure to setup WPA or WEP ?Save before closing browser.
THe only problem was if I wanted to make a change, I had to factory reset the linksys to access it again.
This isn’t the best solution…you should look into non-consumer to get the job done effectively.