Check to make sure Duplex is set to full-duplex, and MTU is set to standard (1500).Ĭustomers with old cat5 cable will only be able to transmit 100Mb/s over the link.

Click Advanced > Hardware > Configure then choose Manually.In Network Connections, select Ethernet.Go to the Link Speed tab, and in the Speed and Duplex section, select 1.0Gbps full duplex, and click okay.Right click on the appropriate Local Area Connection and click Properties.Go to Control Panel > Network and Sharing Center > Change adapter settings.If you are sure that the Ethernet adapter support 1Gb/s speeds, you can force the device to negotiate at 1Gb/s. If you lose physical connectivity after doing so, this indicates incompatible hardware, a hardware negotiation issue, or a potential cable issue. Attempt to set the speed on the port manually to 1Gb/s.Be sure that the device is plugged directly into the Sonic provided RG and not a third-party switch or hub.Ensure in the dropdown menu that the statistics for the appropriate network interface are being displayed.On the Info tab, link speed will be displayed.Browse to Applications > Utilities > Network Utility.The speed of the network will be listed in the Connection section.Double-click on the appropriate Local Area Connection to bring up a new window showing the status.Checking network adapter configuration WindowsĬontrol Panel > Network and Sharing Center > Change adapter settings If you are only getting exactly 10mbps, or exactly 100mbps down via ethernet on gigabit fiber, checking the configuration on your computers network adapter is a good start.

Mac ethernet adapters duplex issues