


Cat 6 remedies this issue, and making sure that all of your cabling is Cat 6 or better is usually a surefire way to achieve a gigabit connection.Ī "failed" Cat 5e or Cat 6 cable will usually still work at 100 Mbps.

It is best to bypass any Ethernet wall jacks unless you can be absolutely that they are all Cat 6 compatible, with Cat 6 cables in the wall.Ĭat 6 is preferred to Cat 5e as, although the latter is technically capable of gigabit connections, it lacks any redundancies in grounding, which is an extremely common point of failure in network cables. Be sure to include any places where you are plugging any of your networking equipment, including your computer, into the wall. Also make sure that all of your other networking equipment is gigabit capable If you can't be sure that all of the cabling is proven Gigabit capable, swap with a Cat 6 or better cable. Make sure all cabling between your machine and the router is Cat 6 and, if possible, proven capable of working at Gigabit speeds with another machine. Power cycle your access point (hub, switch, router) and any other device between your machine and the access point.Ģ. You can further troubleshoot this by trying different combinations:ġ. That said, all adapters are different and handle shorts or issues with cables or ports differently, but a Gigabit adapter reporting as 100 Mbps is almost certainly a physical issue with the networking equipment. This includes all cabling between the machine and the router - including any cabling in, before, and after any switches, or on the other side of any wall jacks. This is a very, very common occurrence when troubleshooting Gigabit Ethernet, and it nearly always comes down to one Cat 5e cable being the culprit. Even if you firmly believe that your Ethernet cable is perfectly fine, and even if this cable worked fine before, swapping it out for another, proven cable, or a brand new Cat 6 cable, will almost certainly solve the issue with a minimum of troubleshooting and headache. If this is set correctly and you are still having the issue then it could be a couple things, although it is important to note up front that this is almost always an issue with an Ethernet cable. Auto-Negotiate is the correct setting for Gigabit speeds with our adapters. This option is under the Advanced tab of the adapters properties, just right click the adapter and choose properties. From the Device Manager, you can check to see that the Killer adapter is set on Auto-Negotiate. The only setting that is of concern for a gigabit connection is that the adapter is set to Auto-Negotiate. We're sorry to hear that you're having troubles with your new Gigabit connection!
