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New RAX70 router will not connect to unmanaged switch--seems to kill ISP Internet
Just installed a new RAX70 router connected to Spectrum ISP for Internet. Firmware updated. When I try to connect an unmanaged switch (TP Link or Netgear) to the any ETH-out port on the router, it will not connect the switch or the devices plugged into the switch to the Internet and seems to kill access to the Internet for both wired and Wi-Fi devices. I can plug the devices in the switch directly into the ETH-out ports of the router, but if I use the switch, the devices will not work and all my Wi-Fi networks lose Internet connectivity. It's like the router or the Spectrum modem senses the switch and shuts down Internet access to the router. Tried three different switches and different cables with same result even if only one device (plus the router) was plugged into the switch. Previous Asus router had no problem with these switches.
Actiontec MOCA AP is connected to Netgear router ETH port.
Discovered that root cause of the problem may have been a bad connector on the backbone ETH network infrastructure for the building. All switches were affected by the resulting intermittent connectivity, which just happened to coincide with the testing. Other parts of network were not affected by the backbone issue. Replaced connectors at both ends of backbone line. So far, no further problems with switches. Embarrassing example of the usual advice to check all cables. Did so on the local devices and also tested the backbone but missed the issue because of the intermittent nature and its coincidence with the switch testing. Not absolutely sure that this explains all switch "fails" but hoping it does. Thanks for all the replies, which definitely helped narrow the issue.
9 Replies
ceh123 wrote:
It's like the router or the Spectrum modem senses the switch and shuts down Internet access to the router.
Perhaps you could tell people what that modem is. (It might also help if you told us the router's firmware version.) The symptoms you describe suggest that it is a modem/router. So you are piling router on router.
Two routers on your network can cause headaches. For example, you can end up with local address problems. Among other things, the other router can misdirect addresses that the Netgear router usually handles, such as routerlogin.net or the usual IP address for a router, 192.168.1.1.
This explains some of the other drawbacks.
What is Double NAT? | Answer | NETGEAR SupportWhat model# swathes are you using?
What CAT# LAN cable are you using? CAT6 is recommended.
Connecting the switch shouldn't break the internet if other devices connected to the back of the router work. Be sure your switches are in good working order and are connected to the LAN ports in back of the router.
Swap LAN cables to test as well.
ceh123 wrote:
Just installed a new RAX70 router connected to Spectrum ISP for Internet. Firmware updated. When I try to connect an unmanaged switch (TP Link or Netgear) to the any ETH-out port on the router, it will not connect the switch or the devices plugged into the switch to the Internet and seems to kill access to the Internet for both wired and Wi-Fi devices. I can plug the devices in the switch directly into the ETH-out ports of the router, but if I use the switch, the devices will not work and all my Wi-Fi networks lose Internet connectivity. It's like the router or the Spectrum modem senses the switch and shuts down Internet access to the router. Tried three different switches and different cables with same result even if only one device (plus the router) was plugged into the switch. Previous Asus router had no problem with these switches.
