Rebooting and resetting your router is usually a sure fix. Here are the steps you need to take to get your Wi-Fi up and running again, and what to do if those steps don't work. If this is what you are experiencing, follow this article to get it resolved. Mark. Does the internal network adapter get in 100MBPS mode while connected to the router while 1GBPS while connected to switch? Have you tried to log into your router and see if there is settings for port speed that can be changed? Have you tried to communicate internal between computers at home? Are. When issues like signal loss, slow speeds, or intermittent connectivity arise, systematic troubleshooting is key. Why Do Fiber Networks Fail? Despite their robustness, fiber networks can fail due to:. For now, let's look at several factors that may be causing your speed to slow down. It may also struggle to support more than a. Sometimes I unplug the cabble from my computer and plugs it into a laptop, it makes the router recognize the laptop accepts more speed and unlock the 1Gb speeed.