DEV_8136 or similar usually points to the RTL810x PCI-E family.
: Features updated drivers (up to 2019 versions) compatible with Windows 10/11. realtek rtl8139 driver 810x family pci-e gigabit windows 10
Auto-negotiation algorithms on modern Windows 10 builds sometimes misread older 10/100 Realtek chips, resulting in broken connections. DEV_8136 or similar usually points to the RTL810x
If you struggle with stability or require true Gigabit performance, consider purchasing a dedicated or a USB 3.0 to Ethernet Adapter utilizing a modern Realtek RTL8153 or Intel chipset. These modern upgrades cost very little, work instantly with Windows 10 plug-and-play, and ensure you utilize your full internet bandwidth. work instantly with Windows 10 plug-and-play
Driver options and notes: