Arris SB6141 connected to switch. How do I find address list of connected devices?
We have a small business with about 8 computers and 2 printers.
Prior to getting Comcast we had AT&T Uverse whose router address was 192.168.1.254. The Uverse modem was connected directly to a Netgear 24 port network switch. All the connections are then sent through the office to the various devices via CAT 5. The addresses of each device are assigned randomly with numbers in the sequence of 192.168.1.xxx. I set up the 2 printers with their own IP addresses like 192.168.1.100 & 192.168.1.150, so that each computer could set them up to print at those specific addresses. Should we lose power, or the machine is turned off, the IP addresses of the printers wouldn't change when the power came back up, thus each person wouldn't have to go in and change their individual printer settings.
So we fast forward to Comcast. I got the ARRIS SB6141 router and Comcast installed it and it is connected to the same Netgear switch. Now, some computers connect and some don't, even though they are attached to the same switch (and they go back to connectivity when I connect the switch back to the AT&T modem). What I'm trying to figure out, (other than why some aren't connecting to Comcast modem) and neither the tech at Arris, nor at Comcast could tell me, is what is the series of numbers that the arris modem will assign to the different devices when they get connected to the internet? I know the Cable modem is 192.168.100.1. Does that mean the computers that connect will have the series assigned randomly like 192.168.100.2 then 192.168.100.3 etc? Also, what are the Subnet Mask and the Deafult Gateway addresses for the Arris modem? I want to again set up the printers and assign them numbers so, should they get turned off, I don't have to go to each computer and change the IP addresses so they can print.
Thanks, in advance, for any help you can give me.