Chosen Solution
My laptop doesn’t connect to the Wifi unless I’m using a Ethernet cable or right next to my router but even then I get 3-4 bars. I have tried everything from deleting the driver and reinstalling it but nothing has worked my wifi driver is Broadcom 102.11n
It may be a defective wireless adapter or it could be a problem with the antennae connection. If you open the case you can check to see that the wireless antennae connections are firmly snapped into the wireless adapter. The wireless adapter is usually a small square shape with black and white wires connected to the adapter with tiny coax connectors. The connectors are difficult to put on, it is best done by aligning the edge of the connector and pressing it down until it snaps into place. You can also try reseating the wireless adapter, it is usually held in with one screw. The antennae wires are routed through the hinges to the display, sometimes the wires are not routed right and get broken or worn. If the antennae wires are connected and the wires are intact, then the problem would be the wireless adapter.
