Nope, no "router". Spectrum (Time Warner) gave me a Hitron Technologies E31N2V1 "modem". It also has the Spectrum name embossed on the side. The purpose of the Netgear GS608 switch is to replace any kind of wireless router. In effect, it serves as a "wired" router. I had a wireless router for awhile but it cut my Internet speed in half so I trashed it.
Everything I've gone through on this problem would indicate that you're probably right that the Spectrum modem only allows one IP address. I wonder how connecting the Roku first and then the computer would over-ride that problem? But, as I mentioned, I think if I turn off the Roku that it will lose its' Internet connection and won't be able to find it again unless I go through hooking each item up separate and the computer last.
Oh, for crying out loud. I thought a Switch WAS a "wired" router. But, as I search around on the Internet I see where there is a distinct and separate animal called a WIRED ROUTER. That's what I need as it will allow me to connect multiple devices to one IP address. Now, I've REALLY got to thank you for explaining the difference between a switch and a router. I'll have to check out Best Buy and Amazon to see what's available but that should really fix my problem.
I've been thinking about your suggestion for a wireless router. With a wireless router, I could have a second Roku upstairs without running a separate cable coax up there nor having to have a second computer. For privacy, I could hardwire through the LAN ports, if necessary. I see that wireless routers costs are all over the map. But, on Amazon, I see a Medialink AC1200 wireless router with 1 WAN and 4 LAN Gigabit ports for $ 59.99. It's got a 4.5 star rating from 727 customers. Is there any better model than you can think of? I refuse to buy Netgear anymore. I got their wireless router which cut my Internet speed in half and their modem which they wouldn't update the software. They said my ISP should update the software. I said, "WHY, it's YOUR product." So, I trashed both items and vowed never to buy Netgear again.
Roku has some music or sounds for sleeping at night. You know, thunderstorms, rainfall, flowing streams etc.