I'm using a Gigabyte B550M DS3H AC R2 motherboard, but its built-in Wi-Fi performance is terrible even with the included antenna connected. The computer and router aren't very far apart, yet I'm only seeing around 1–20 Mbps. Would a separate Wi-Fi card improve things, or are there other fixes I should try first?
3 Answers
Before replacing the hardware, make sure both antenna connectors are firmly attached and positioned away from the back of the case. Also reinstall the motherboard’s Wi-Fi drivers, try the 5 GHz network, and check whether other devices get normal speeds in the same location. If the problem is limited to that PC, the onboard adapter or its drivers may be the issue.
If the signal is weak or inconsistent where the computer is located, a mesh system or an additional access point can help. Put one mesh unit near the PC and connect the computer to it with Ethernet; that often gives more reliable results than relying on the motherboard’s small internal antenna.
A newer Intel Wi-Fi M.2 adapter could be a worthwhile upgrade if troubleshooting confirms the built-in adapter is faulty or outdated. Just verify that the replacement card is compatible with the board, install the correct drivers, and don’t expect a Wi-Fi 7 card to fix a weak signal or router limitation by itself.
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