The RTL8211E-VB-CG is a popular Ethernet transceiver used in various networking devices, such as routers, switches, and network interface cards (NICs). Despite its widespread use, this component is not without its challenges. If you're encountering problems with this chip, it can lead to network instability, connectivity issues, and poor performance. Fortunately, most of these problems can be quickly diagnosed and resolved with the right approach. Below, we delve into the top five common issues that users encounter with the RTL8211E-VB-CG and offer practical solutions for fixing them.