Problem with Wi-Fi sharing from laptop

Hi! I use application to share wi-fi from my laptop, but not all devices can connect. Laptops and tablets do not connect, my phone connected by only after I reinstalled the driver in laptop for wi-fi. I think it shares standarts 802.11b or 802.11g, the ones that devices cannot receive, but in this case I don't know what I should do, renew the driver? Please assist.
