I cant login to 1.6.2 servers, it says failed to login: bad login. My password is right everything is the same as I left it last night. I closed minecraft a unbelievable amount of times too, 1.7 server work fine :/
This is annoying the crap out of me... I tried to log with my alt to see whether or not it was a problem with my account (after I restarted my computer, internet, and MC multiple times), only to find that it logged in just fine. Then I go back to this account and it doesn't work. Then I read this and see more people are having the problem, so I know it isn't an account problem. All in all I got in fine on my alt but then I try with my normal account and... Well... It doesn't work FTW EDIT: Haro was right I spammed it for a lil bit and got in just fine
Sometimes, it will say bad login after a while of being logged in, or if you have two Minecrafts up but on different accounts. I'd just go with what Bitemenow said, though.