I purchased the GS305 and I’m having trouble with my computer connecting to the internet. When I connect the Ethernet to the GS305 my computer recognizes a network but can’t reach the web. When I run the troubleshooter it says I don’t have a valid IP address. When I bypass the GS305 and plug into the Ethernet port, everything is fine. It was my understanding that the switch was essentially an Ethernet splitter so I could connect more devices, I’d that not correct? I also have a PS4 plugged into the GS305 and that isn’t having any online connectivity issues.

Permitting the cables are fine, an the link LEDs show up: Probably connecting direct to eg. a cable modem WAN port where only one IP is available? WIthout a NAT router only one device can connect as only one IP will be assigned to the port intended to connect a NAT router.

I'm having a similar issue. The switch is plugged into the modem (no router) and a Roku works fine plugged into the switch but the computer will not connect to the internet when plugged into the switch. It says there is an incorrect IP. Even if the computer is the only device plugged into the switch I get the same error.I would appreciate any help/suggestions!

DW21 wrote: I'm having a similar issue. The switch is plugged into the modem (no router) and a Roku works fine plugged into the switch but the computer will not connect to the internet when plugged into the switch. It says there is an incorrect IP. Even if the computer is the only device plugged into the switch I get the same error. This is not a switch problem, just a common standard for ISP modems (without a NAT router). As I wrote above: WIthout a NAT router only one device can connect as only one IP will be assigned to the port intended to connect a NAT router. One device will get a public IP address assigned, other devices won't get an IP address assigned, modern devices might fall-back to an auto-assigned ZercConfig IP subnet address.

GS305v3 IP address | NETGEAR Communities

3 Replies

schumaku
Guru - Experienced User
Sep 02, 2021
Permitting the cables are fine, an the link LEDs show up: Probably connecting direct to eg. a cable modem WAN port where only one IP is available?

WIthout a NAT router only one device can connect as only one IP will be assigned to the port intended to connect a NAT router.
- DW21
  Aspirant
  Oct 08, 2021
  I'm having a similar issue. The switch is plugged into the modem (no router) and a Roku works fine plugged into the switch but the computer will not connect to the internet when plugged into the switch. It says there is an incorrect IP. Even if the computer is the only device plugged into the switch I get the same error.
  I would appreciate any help/suggestions!
  - schumaku
    Guru - Experienced User
    Oct 08, 2021
    DW21 wrote:
    
    I'm having a similar issue. The switch is plugged into the modem (no router) and a Roku works fine plugged into the switch but the computer will not connect to the internet when plugged into the switch. It says there is an incorrect IP. Even if the computer is the only device plugged into the switch I get the same error.
    
    This is not a switch problem, just a common standard for ISP modems (without a NAT router). As I wrote above:
    
    WIthout a NAT router only one device can connect as only one IP will be assigned to the port intended to connect a NAT router.
    
    One device will get a public IP address assigned, other devices won't get an IP address assigned, modern devices might fall-back to an auto-assigned ZercConfig IP subnet address.

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GS305v3 IP address

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