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  1. K

    Login failed due IOException

    Hafuu do you use ESET for your antivirus? If you do go into Advanced setup, Web and email, Protocol filtering, SSL. Change the setting from Always scan to ask about non-visited sites. Start the FTB launcher and when you click the launch button create an exception for the minecraft login servers...
  2. K

    Login failed due IOException

    Just an update. tried with both the windows .exe and the .jar file and both give an IOException error. However offiline mode works and if I import the FTBBETA folder into MultiMC I can login with no problem. I even tried clearing all of the FTB files, launcher and the ftblauncher folder in the...
  3. K

    Tekkit is a joke but my FPS was Higher

    I've found that some mods just by being installed can cause some issues with frame rate. One of them being ExtraBiomesEL and another IC2. I don't have any issues with version 106 of IC2 though I did notice the frame rate got worse when using the build in the FTB pack. One thing to remember is a...
  4. K

    Login failed due IOException

    The ID and password are valid and I do have a valid minecraft account. I was able to login with the FTB launcher earlier this morning though not anymore. However I can still login to and play minecraft normally, just doesn't work using the FTB launcher.
  5. K

    Login failed due IOException

    So starting about an hour ago I started getting a "Login failed due IOException" error. However this only happens when using the FTB launcher. I can login using other launchers so it only seems to be an issue with the FTB launcher. I've checked my antivirus/firewall logs and it's not blocking...