Q: still unable to keep WiFi stable on macBookPro 10.10.2  after Yosemite, even after update Jan. using cable for now ..thanks

Wi-FI connection drops

Wi-Fi Problems in OS X Yosemite

Wi-Fi Problems in OS X Yosemite (2)

Wi-Fi Problems in OS X Yosemite (3)

Wireless Diagnostics

Also try turning off Bluetooth.

WIFI AND BLUETOOTH FINALLY SOLVED, NO REALLY - YOSEMITE 10.10

Troubleshooting Wi-Fi issues in OS X

Wireless Connection Problems - Fix

Wireless Connection Problems - Fix (2)

Wireless Connection Problems - Fix (3)

Wireless Connection Problems - Fix (4)

Hello,

I had like problems, that started after upgrading to the next operating system.

I have an fairly old macbook pro.

the probelms was eratic, sometimes WFI worked for hours, then, without any indication it stopped.

The wifi indicated being on, no activity though.

switching on or off didn't make a change as if the wifi software stopped working.

in the end I used EtreCheck for diagnostics.

Then I learned having to little memory to use the new installed operating system.

quite a few processes did not load for lack of memory

I increased memory to the max, now startup is faster and no more WIFI problems.

succes, Wilfried