My ISP has currently provided me with two modems. One in the living room (Motorola - SBV5121), with telephone function. And then the other one in my bedroom (Cisco - DPC3000). I have a high power router connected to the Cisco modem (TP-LINK - TL-WR841HP - 300M).
Recently, I have notice that installing an access point can help me to further extend the Wi-Fi range all over my house. Indeed, I have an oustanding router (Cisco - WRT54GC - 54M). But the issue is, I am not sure whether it works, as my ISP uses dynamic IP.
So, it would be great if I can know.
(1) If I am about to use the Cisco router as access point, must I have the same IP? Or it doesn't work in the scenario above? (p.s. I am having two different modems, although connected to cables)
(2) If it doesn't work, then can I do something like access point (i.e. same SSID, different channels)? Or I better set up a separate SSID? (e.g. Jamie_1 / Jamie_2)
I know my description is really bad, so I would be grateful if anyone can give me some ideas!