As far as I know the problem is coming from the switch, since I only have issues once I plug that in.
Info about the network:
Cable from Charter Communications
(1) BEFSR41 linksys wired router
(3) Linksys 5 port wired switch
(1) WRT54G Linksys Wireless router (working as a wireless hub)
(1) Linksys Wireless N router (not sure of model, belongs to another family member)
*can't remember exact positioning*
BEFSR41: Internet = Cable Modem
Port 1: Leads to wireless router that also has a blu-ray player wired into the WRT54G
Port 2: Leads to one of the switches that runs a PC and a PS3 on top floor
Port 3: Leads to the Linksys Wireless N router in basement
Port 4: Leads to the switch plugged in near the BEFSR41 (well call this Switch A)
The switch on port 4 (Switch A) leads to a connection on the top floor with another switch running about 2 pc's.
If I have everything connected except for the switch, everything works fine and I wont get disconnected. Once I plug
in the switch, every few minutes the router's power LED will blink 7-8 times and then the LEDS for ports 1-4 will go
dark for a second and then come back on, this will happen constantly. Most always I'll lose all internet connection but will still be able to connect to the router from one of the connections NOT in Switch A.
A trip to the "Status" page of the BEFSR41 will list all the connections (public IP, subnet mask, etc.) as 0.0.0.0 Clicking the "DHCP Release" and "DHCP Renew" buttons will do nothing. I have to power cycle the cable modem and then the router *without* Switch A powered on to get a internet connection.
I've replaced both the router and Switch A thinking that was the issue but obviously not. This all started because I wanted to get NAT Type 2 on my PS3 and once I got it everything else broke. The only router settings I've changed are:
Enable UPnP = Enabled
Allow Users to Make Configuration Changes = Enabled
Filter Multicasting = Enabled
Filter Internet NAT Redirection = Disabled
Changed Local IP Address to 192.168.0.1 instead of 192.168.1.1
I have MAC Address Clone on this PC
Everything else is default with all the individual systems cept for one (set for the DMZ) to obtain their addresses
automatically. I've been through 3 days of troubleshooting and nothing works. I was thinking it may be too many connections split too many times for this router or possibly something to deal with the subnet mask?
Thanks in advance