Minecraft Forums

Please help me I've looked up videos on how to fix this but they don't help i,m freaking out. Please help me.
here is what is says:
Fatal error occurred (4): Address Family not supported by protocol family: connect
Please help me.

System specs, firewall/anti-virus, and java version?

newest java version
Macafee built in with internet
Intel® Core i3-2330M
Intel® HD Graphics 3000
Windows 7
2.20 GHz processor speed
dual core

First try disabling Macafee's auto protection (AV, firewall, any function you can find), then try using the launcher. If ti works, it means macafee is being overzealous, and you'll probably need to add (or remake) the exception rules for javaw.exe and java.exe.


If that doesn't work, try this:

Go to the control panel, and open Java. Then go to the Java tab, click view, and it'll open a small window.

Uncheck "enable" on the left for all except the highest version number. Then add this to the runtime parameters

-Djava.net.preferIPv4Stack=true

Hit ok, then ok again to close the java setting.

Try restarting your router

im having this very same problem. ive tried everything i can think of, every single suggestion ive been able to uncover. and nothings working.

Help!!! Im having the same problem. I had this problem with updating an older version (fixed it) and Im now having it with 1.4.7 ( havent tried anything yet just panicked)

Rebooted computer and it worked

Quote from Sko

This is your problem. Java 7 defaults to IPv6, but your hard/software or (most likely) carrier doesn't support it yet. Two possibilities:

• downgrade to Java 6 (good, easy)
• disable IPv6 for every network adapter (better, not that easy)

changed the network adapter, works great.