[Mac OSX Internet Sharing with WiFi Pineapple howto]

Also,

Please take note that when reviewing the script it is advised to set the portion

#Backup old NAT files and bootpd
if [ -e /Library/Preferences/SystemConfiguration/com.apple.nat.plist ]; then
mv /Library/Preferences/SystemConfiguration/com.apple.nat.plist /plistbackups/
echo "Backed up old NAT file"
fi
if [ -e /Library/Preferences/SystemConfiguration/com.apple.nat.lockfile ]; then
mv /Library/Preferences/SystemConfiguration/com.apple.nat.lockfile /plistbackups/
echo "Backed up old NAT lock file"
fi
if [ -e /etc/bootpd.plist ]; then
mv /etc/bootpd.plist /plistbackups/
echo "Backed up old bootpd file"
fi
sleep 1

to replace with below

#Backup old NAT files and bootpd
if [ -e /Library/Preferences/SystemConfiguration/com.apple.nat.plist ]; then
cp /Library/Preferences/SystemConfiguration/com.apple.nat.plist /plistbackups/
echo "Backed up old NAT file"
fi
if [ -e /Library/Preferences/SystemConfiguration/com.apple.nat.lockfile ]; then
cp /Library/Preferences/SystemConfiguration/com.apple.nat.lockfile /plistbackups/
echo "Backed up old NAT lock file"
fi
if [ -e /etc/bootpd.plist ]; then
cp /etc/bootpd.plist /plistbackups/
echo "Backed up old bootpd file"
fi
sleep 1

That is if you prefer to have the files copied instead of being moved.

[Can't share Internet Connection from Windows to Pineapple]

Are you sharing the internet through the LAN or the WAN?

[MacBook can't connect on management wpa2]

DAC,

Considering you are using OS X , what version?

Apple has a fancy way of doing things and is forcing the 192.168.1.X subnet rather than the 172.16.42.X for sharing ( assuming this is what you are trying to do)

What is the contents of /etc/bootpd.plist and /Library/Preferences/SystemConfiguration/com.apple.nat.plist?