Why Your Wi-Fi Is Slower Than Your Roommate's on the Same Router
Same router, same room, very different speeds. The explanation usually lives inside your laptop — in the network adapter, its driver, and one greedy power setting.
Your Adapter Has a Speed Ceiling
Every Wi-Fi adapter supports a specific set of Wi-Fi generations — Wi-Fi 5, Wi-Fi 6, or Wi-Fi 6E. If your adapter is a generation behind your roommate's, it simply cannot use the faster channels the router offers, regardless of how good your driver is. Before assuming a driver problem, check your adapter specification in Device Manager. If the hardware is older, a driver update will help at the margins but will not close a generational gap.
Power Management Is the Most Common Culprit
On battery-powered laptops, Windows aggressively puts the Wi-Fi adapter into a low-power listening mode to extend battery life. In this mode, the adapter wakes on a cycle — checking for data, then sleeping again — rather than listening continuously. This increases latency and visibly reduces throughput. On a laptop running on battery, this single setting can halve your effective wireless speed compared to the same adapter running at full power.
Driver Quality Makes a Real Difference
Wireless chip manufacturers — Intel, Realtek, Qualcomm, Broadcom — regularly release updated drivers that improve connection reliability, fix dropped-packet issues, and improve throughput on newer Wi-Fi standards. The generic driver Windows installs automatically is often months or years old. Installing the latest driver from your laptop manufacturer's support page (for laptops) or the chip maker's site (for desktop cards) is one of the highest-return driver updates available.
The Five-Minute Fix
Open Device Manager, expand Network Adapters, right-click your Wi-Fi adapter, and choose Properties. On the Power Management tab, uncheck "Allow the computer to turn off this device to save power." On the Advanced tab, find Power Saving Mode or Wireless Mode and set it to Maximum Performance. Then download the latest driver from your manufacturer and install it. Test your speed again. In most cases, these two changes together resolve the gap.