PCI Net Work Toshiba Satellite L25-S1215

PCI network controller on motherboard
I keep getting this message on my lap top ” PCI network controller on motherboard” Bus:02 Device:02 Function 00, FI to continue, F2 to setup. If I press FI, my lap top will reboot itself. I also have problem with wireless connection where the wireless “icon” on the Right lower coner disappers and I cannot get wireless connection. I have to restart the computer for the wireless ‘icon’ to reappear on the right lower coner. How do I fix it? Please help.