Cable Forum - View Single Post - Multiple Mac addresses on one connection? Is this possible?

mithrill · 05-12-2005, 09:34

My mother currently gets her broadband via NTL she has the 2MB connection in Surrey (not sure if the location makes a difference with NTL). She has a fairly old terracyon (Model: 210) modem which she got from NTL. Internet works fine when a computer in connected (using the ethernet port) directly to the modem. The issue arrives when trying to set up multiple computers to use the same connection. I have attached a (known to be working) router/switch to the modem and then 3 computers and a PS2 to the router. Each of the computers works on the internet individually, however in order to switch between them the modem needs to be reset. Through much diagnostics and messing i have managed to pin this down to the mac address (i think). Either the ISP stores the mac address somehow or the modem is storing the mac address and limiting connection to this mac address. This puzzles me greatly and goes against most of my knowledge. All can connect to the router (responds to pinging and can access the admin screens), but only one at a time can connect to the internet. Is this a common problem/deliberate NTL restriction? Is there a workaround? Should i just buy a new modem? Should i just change broadband from NTL to another ISP?

05-12-2005, 09:34	#1
mithrill Inactive Join Date: Dec 2005 Posts: 3	Multiple Mac addresses on one connection? Is this possible? My mother currently gets her broadband via NTL she has the 2MB connection in Surrey (not sure if the location makes a difference with NTL). She has a fairly old terracyon (Model: 210) modem which she got from NTL. Internet works fine when a computer in connected (using the ethernet port) directly to the modem. The issue arrives when trying to set up multiple computers to use the same connection. I have attached a (known to be working) router/switch to the modem and then 3 computers and a PS2 to the router. Each of the computers works on the internet individually, however in order to switch between them the modem needs to be reset. Through much diagnostics and messing i have managed to pin this down to the mac address (i think). Either the ISP stores the mac address somehow or the modem is storing the mac address and limiting connection to this mac address. This puzzles me greatly and goes against most of my knowledge. All can connect to the router (responds to pinging and can access the admin screens), but only one at a time can connect to the internet. Is this a common problem/deliberate NTL restriction? Is there a workaround? Should i just buy a new modem? Should i just change broadband from NTL to another ISP?