"Invalid username or password" Issue

[Takahashi88]

Hey Guys,
I know, there is i thread like this but it didnt helped me out :-/

Since today i get this error, when i try to log in.
I tried a few things to fix it:
- Use email instead of the username
- Reentered the password several times and updated
- Reinstalled Minecraft as well as the FTB Launcher
- Launched as Admin

I also tried different combinations of this.
My account is legit. I have it for 3 years now. I also can log in to vanilla Minecraft and also to the website with no problems.
Hopefully someone knows a different way to get around it.

 

[JamiePhonic]

error logs please
in the settings tab of the launcher, check both the "show console" AND "reopen launcher after exiting minecraft" boxes.
this way the launcher will reopen after a crash an you can use the "post to pastebin" button to get a link to the log you can paste here.

 

[Takahashi88]

As I said. I cant even log in with the FTB Launcher. There is no crashing. The console just said, that it failed to login.

So whats the Solution now?