I have a SURFboard® DOCSIS 3.0 modem connected to my ISP, and want to extend my network using a SURFboard® SBG7580-AC Wireless Gateway. Can I connect the SBG7580-AC to the DOCSIS 3.0 modem by wifi or do I need an ethernet cable to get internet through the SBG7580-AC ?
Answer
Docsis 3.0 modem to router to extend Wi-Fi on SBG7580-AC
- The Many
Best answer by SURFboard Moderator
You will need an Ethernet cable to connect your SURFboard DOCSIS 3.0 modem to the SURFboard SBG7580-AC Wireless Gateway.
The SBG7580-AC is a gateway (modem + router combo), not a Wi-Fi extender, so it does not support wireless bridging or mesh connections.
If your goal is to extend your Wi-Fi range without an Ethernet connection, you can use a dedicated Wi-Fi extender or mesh system (like the SURFboard mAX) and enable bridge mode on the SBG7580-AC (if supported) and use it as a secondary router with a wired connection.
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- Wi-Fi Warriors
- Answer
You will need an Ethernet cable to connect your SURFboard DOCSIS 3.0 modem to the SURFboard SBG7580-AC Wireless Gateway.
The SBG7580-AC is a gateway (modem + router combo), not a Wi-Fi extender, so it does not support wireless bridging or mesh connections.
If your goal is to extend your Wi-Fi range without an Ethernet connection, you can use a dedicated Wi-Fi extender or mesh system (like the SURFboard mAX) and enable bridge mode on the SBG7580-AC (if supported) and use it as a secondary router with a wired connection.
- The Many
Thanks for the advice. One other wrinkle was that I was also working in a D-Link AC1200. The D-LINK and SURFboard DOCSIS 3.0 worked fine together with a cable and no setting changes.
Trying to link via cable with ISP coming into the SURFboard DOCSIS 3.0 (#1), cable running to the SURFboard SBG7580-AC (#2), and cable from #2 running to the D-Link (#3) was not stable. I could not get into routers 2 and 3 to enable a bridge function, disable the DHCP server or assign a new IP address. I will probably get rid of my older SBG7580-AC and D-Links and look into wifi extender or mesh system. Know anyone that wants an SBG7580-AC or D-Link AC1200?
+41- Juggernaut
Avoid extenders if you’re using more than 1. Just do it right the first time and pickup a mesh system. You’ll have better performance and stability.
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