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Hotspot connection with WIFI router
I did a quick search and did not find any related topics.
I have installed a wifi/router (Netgear C7000v2) on our boat. When in the marina it is connected to the outside coax cable to provide internet access to all wifi devices on board. Is there a way to connect a IPhone as a hotspot to the wifi/router when under way (disconnected) to provide the internet access? There are a lot of devices connected to the wifi and I don't like to re-map all of them when using an hotspot. I read some articles about bridge'ing the wifi/router but could not figure out.
You have a couple of choices. One, and likely the cheapest, would be to replace the Netgear C7000 with a router capable of multiple connection types. I've just reviewed a $69 option that would do exactly what you want. It's the GL.iNet AR750s and it manages connections via Ethernet, WiFi and USB sources.
Alternatively, you could get a WiFi bridge that will convert the WiFi from your phone to Ethernet. This will actually prove to be more expensive and require switching the cable between the marina internet connection and the wireless bridge. Marine specific wireless bridges are available from companies like Digital Yacht, Wave WiFi, RedPort Global and others.
Thanks Ben for the answer that review sounds really good just read through it.
Also I was listening to the podcast, very informative.
Only concern I have is that the GL.iNet is currently not available and if I need to get my cable service re-configured (with XFinity / Comcast). I remember that they needed to register the router on their side for activation.
 I just saw that the unit does not has a coax port, so I might still need to use the Netgear and connect to the GL.iNet?
Do you know if there is a similar product like the GL.iNet on the market?
I didn't realize you were terminating your cable connection directly to the Netgear. That means your current Netgear router is doing double duty as both a cable modem and router. I don't believe you will find any travel routers with cable modems built in since travel routers are designed for use on the go where you wouldn't typically have a cable internet connection. Your use case does come with both. So, I think you have two options, one, as you mentioned, use the Netgear to land the cable internet connection and then connect it to a port on the GL.iNet device or two, get a dedicated cable modem without a router and connect that to the GL.iNet router.
If you go with option 1, you might want to figure out how to put the Netgear into passthrough mode so you're not doing something called double NAT'ing. It's not a huge problem but can introduce some complexities.