Minecraft Forums

PROBLEM FIXED


Hey there,

Since last night, I have had a problem launching Minecraft. It started when I could not connect to any multiplayer server, and so I deleted the .minecraft folder (I had modded some stuff) and tried again. But now, every time I try to launch the game,, I get the same error when it tries to download it again:

Failed to launch
Fatal error occurred (4): Address family not supported by protocol family: connect


I have updated all of my drivers, I have reinstalled Java, I have restarted my computer, and I have searched around the forum and Google and found nothing. Nothing has changed about my computer, so I don't know why it has stopped working.

OS: Windows 7 Ultimate 64 Bit

Thanks for reading, and I hope you have an answer :tongue.gif:

Try completely reinstalling minecraft

Hmm... Doo You Got Texturepacks? if you doo remove them. and try.. that normaly happends too me.

Try completely reinstalling minecraft

Hmm... Doo You Got Texturepacks? if you doo remove them. and try.. that normaly happends too me.

That's what I'm trying to do at the moment.. I don't even have a .minecraft folder... When I try to run the game, obviously it tries to download Minecraft fresh, but it gives this error. Also, because of this, I couldn't possibly have any texture packs installed at the moment :S

I really am running out of ideas here :S

I'm having the same problem. The error first occurred when I tried to join a server. I thought it was caused by some of the mods I had installed so I deleted the bin folder. The launcher then prompted me with the same error so I deleted my whole .minecraft folder. Now when I try to download the Minecraft jars it prompts me with "Failed to launch Fatal error occurred (4): Address family not supported by protocol family: connect"

Edit: I force updated Minecraft and it downloaded the jars. But I am still receiving an error when I try to connect to any server. The error is as follows: "Internal client error: java.net.SocketException: Address family not supported by protocol family: connect"

Quote from Faber160

I'm having the same problem. The error first occurred when I tried to join a server. I thought it was caused by some of the mods I had installed so I deleted the bin folder. The launcher then prompted me with the same error so I deleted my whole .minecraft folder. Now when I try to download the Minecraft jars it prompts me with "Failed to launch Fatal error occurred (4): Address family not supported by protocol family: connect"

That's exactly what happened to me.... I even tried using the Spoutcraft launcher, and that gets me in, but I still can't connect to anything (same error).

Quote from epikal

This error is coming up a bit recently, what AV/Firewall software do you guys have?
Have you tried temporarily disabling it?
Do a search here on 'winsock' for one possible fix.

I am using avast as my antivirus and the default Windows Firewall. I disabled avast and the firewall but it still gave the same error message. I already attempted to use the winsock fix and it had no effect. Here is a link to the fix that I tried Winsock

If anyone has a solution to this it would be greatly appreciated as this is starting to get really frustrating.

I fixed the problem by installing the winsock fix and deleting a spyware program I had installed called RelevantKnowledge. If you're having this problem look in the Task manager for a program called "rlvknlg.exe"

Quote from Faber160

I fixed the problem by installing the winsock fix and deleting a spyware program I had installed called RelevantKnowledge. If you're having this problem look in the Task manager for a program called "rlvknlg.exe"

Sir, I could kiss you. That worked perfectly! I have no idea what that stupid RelevantKnowledge is, but getting rid of it worked! Thanks :biggrin.gif:

Quote from Faber160

I fixed the problem by installing the winsock fix and deleting a spyware program I had installed called RelevantKnowledge. If you're having this problem look in the Task manager for a program called "rlvknlg.exe"

I LOVE YOU.............now all we need to do now is figure out what is this Relevant knowledge is.....its clearly a danger to the minecraft community.



THIS IS AN IMAGE OF A SCAN ON MY SYSTEM WHICH CLEARLY SHOWS THAT WE GOT INFECTED WITH ADWARE.

Yea i got it right after i downloaded MySql But thats to you i fixed it =D!

Thank you good sir!

At first, I tried deleting it straight up. With Task manager, but then I knew I had to download Malwarebytes again... Thank you Thank you Thank you!!!! :DDDDDDD

If you check the properties of the prosses you realize the developer or signer of the product is TMRG inc http://www.tmrginc.com/researchcommunity.aspx

Nvm that go here http://www.relevantknowledge.com/About.aspx

Ok i have posted this on many minecraft sites...This helped alot........i have a fix because i can trace who made this "spyware knowledge" and made sure he doesnt do this ever again(I hope a DDOS from the police shut him down)

Omg thx

thank you so much