Windows 10: Use modem/router combo as router only

I purchased an Arris SURFboard SBG6700-AC (modem/wifi combo) several years ago. I moved to another city with a different ISP. The cable guy could not get this to communicate with his cable system. There is an 80-year-old woman (neighbor) who has internet but no wifi. I bought her a tablet for Christmas that needs a wifi connection. How would I go about connecting this to her cable modem for the sole purpose of her to have wifi in her home? It seems to me this should be doable. Thank you for your help. .

:)

 

Cable Modem/router + Personal router

Is it considered a WIFI hotspots even though my router is attach with a cable to the cable companies modem/router ?
Does the using of the provided combo modem/router present any problems to my attached router?

 

Wireless cable modem/router/firewall

can someone recommend me a wireless router with built in cable modem. Most of the devices ive seen are equiped with ADSL modems!

required features

• Wireless

• firewall

• router

• Built in cable modem

• fully telewest/blueyonder compatible

 

Problems with Motorola MG7310 modem/router

Good evening.

This may be a simple problem, but I'm not good at troubleshooting by text

My friend was looking for a net modem so I suggested she get the Motorola MG7310 modem/router combo.

She originally had a Time Warner modem. She is currently on the 30Mb plan. She lives in a split level town house apartment.

After she set up the modem downstairs, everything worked fine, but upstairs, the speed test on her son's laptop is only getting 1.5Mbps download while she's getting anywhere between 26 and sometimes 40Mbps downstairs. When she had the Time Warner modem, he was getting normal speeds.

So what do I do next? I would say it was a proximity thing, but he was getting much better speeds on his TW router. What would be the next step?

Thanks for your help