offline button

if you are like me you like to have alot of profile's but when you havent play on the profile for like 2 hours the launch button says play offline and i log in, it saves but when you choose a another profile it says play offline! and you have to log in all the time. to give you a better example i have a modded survival modpack i play with my friend online but what if i dont wanna play on the modpack and i wanna join my other's server i have to login

p.s sorry for my bad English hope you get it