When a wireless connectivity problem arises, all our attention turns to the modem/router... but it is not always the culprit. Sometimes the issue lies in the laptop's WiFi module. From buggy drivers to physical damage, poor configurations, and other quirks of the operating system, it probably needs our help. If you want to know how to optimize the WiFi on your laptop, keep reading.
How to optimize WiFi: Where to start?
Measure its speed
Does your WiFi really work badly, or was it just a momentary connection hiccup? One of the most effective ways to check is by measuring the upload and download capacity of your connections. We have previously shared six services that evaluate your Internet speed, and any of them will work.
Connect your laptop to another WiFi network
This will basically help you isolate problems and achieve a deeper diagnosis. Is it the WiFi module's fault, or the modem/router's? If you notice that under the alternative connection all your headaches disappear, then it's time to look more closely at the router and its configuration. Otherwise, you need to keep exploring...
Update or roll back drivers
How many times has this happened to us? Windows Update decides it has "a better driver" to install on our WiFi, and the connection becomes a house of cards waiting for the first sneeze. The options here are two: Confirm that Windows Update changed the driver and order a rollback (using the "Revert to previous driver" button), or visit the manufacturer's official page and download a new copy from there. Does support not exist? In that case, try one of these programs to update drivers.
Check and/or replace the WiFi module and its antennas
Did something strange happen recently? A knock, a splash? In certain cases, one of the antennas on the WiFi module can end up disconnected, or with its cable cut (some hinges do this). We should also remember that a large number of laptop models allow the removal and replacement of the entire module. The definitive solution to your connectivity problems might be at the end of that route.
And why not a USB dongle?
Yes, the previous point requires a bit of surgery on the laptop, and if you prefer something simpler, you should try a USB WiFi dongle. Some bet on comfort and aesthetics, meaning they don't have external antennas. Others go the opposite direction, offering dedicated connectors to replace the factory antenna with a more powerful one. The best part is they are not very expensive: For less than 15 euros you will have access to a wide range of adapters.
The state of the operating system
It's not pleasant to mention... but we must: Maybe the problem is not the WiFi, but the Windows installation that is upside down. Beyond Windows Update's "own life" with drivers, if the operating system hasn't received maintenance in a long time or just came out of a complex situation (for example, a malware infection), you should consider a bigger intervention besides optimizing the WiFi, including the classic Lieutenant Ripley diplomacy.
What if none of this works?
If the WiFi module on your laptop works correctly, the operating system is in good condition, you've tried an external WiFi dongle, and the computer browses properly on other wireless networks, it's time to put pressure on the modem/router. Our old router optimization guide remains intact, and don't forget the potential of a good hack with a metal strainer. Good luck!
