I have a small network with 60 PCs. Right now the network is a mess, with several switches cascading each other. We have a Linksys BEFSR41 connected to one of our switches to give us access to the internet (8Mbit cable connection). All the PCs have the Linksys's IP address as their default gateway.
Recently we've installed a new Cisco 2800 router to give us access to our corporate offices. All internet traffic should be routed through this router, so we are going to disable the Linksys router.
But for now I would like to have the two routers connected simultaneously to the network to do some tests, so that some PCs can connect to the internet through the Linksys and the others from the Cisco.
What I've done is that I've set some PCs to have the Linksys IP address as their default gateway and the other have the Cisco IP address as their gateway.
Although at first it seemed to work, people started complaining that the internet connection through the Linksys was unstable. I set up my PC to go through the Linksys and in fact the connection was strange. I could open a web page, and sometimes it would be fast, sometimes slower, other times it wouldn't open at all. Disconnecting the Cisco from the network immediately resolved the problem.
Can someone please tell me what is the problem with this setup? I don't even know if I'm supposed to be able to connect two routers on the same network.
Thanks in advance for any help.
Best regards, Meireles.