Having the same login problem on both of our computers today. At a loss for what's going on.
- FTB worked fine for both of us last night.
- Yes, we have legit accounts
- Logging into the vanilla launcher works fine.
- Logging into the minecraft.net website works fine.
- Tried updating the profile by re-typing the password
- Tried creating a new profile
- Tried removing all profiles and creating a new one
- Tried changing download location (not that I expected that to make a difference).
- Tried disabling Windows Firewall completely
In all cases, it just says "Invalid username or password."
Pastebin here, but it doesn't give much info:
http://pastebin.com/JRJV7TUz
I also was notified of a Java update available AFTER this started and I rebooted. Updated Java, but no change.
I also noted there were pending Windows 7 updates in queue today. I installed them and rebooted, but again they were just pending when this started and hadn't installed yet. I'm just trying to think of anything different from yesterday.
Any other ideas of what to try would be great. Been stuck on this for the past hour or so now and running out of ideas.
[Edit: Also tried deleting %appdata%\ftblauncher\, re-downloading the client, and pointing it to a brand new FTB folder. Same results though. The launcher works, finds the mod packs, texture packs, etc... but then errors out on username/password before attempting to download anything.
Isn't there an offline mode? Even vanilla launcher has an offline mode.
]
[Edit2: Came back a couple of hours later and it still wasn't working. I looked around the forums for any updates, connected to the irc chat to ask around there, and tried it again and was able to log in with no changes. I don't dare restart right now to see if it's stable, but at least I got in for now. Definitely something going wrong with the authentication somehow...]