it says latency too high when someone tries to join. can anyone help fix this pls?

http://www.sc2gg.com/forums/index.php?showtopic=2097

You probably have a router blocking traffic. You need to portforward your router to allow internet traffic via the ports that starcraft requires for others to connect to your pc.

You can do this at http://portforward.com. You WILL need to set up a static ip address in order to port forward, so don't skip that step!

It says it costs $29.95?

Static IP? Doubt it. You set it up on your computer and router.

A LOT of people say this, yet it is untrue to all regions that provide internet. Consider calling your ISP first.

They mean setting a static IP for your computer so that the port forwarding settings stay valid.

...isn't that dangerous for viruses, hacks and whatnot if you open ports?

Not if you specify which program can allow access via that port -which is what portforwarding does.

In order to port forward a port, you also need to specify the ip address of the computer you want to portforward to, so if you do not set up a static ip address (within your own network, not an internet ip), then the next time you turn on your computer, you may have a different ip address.

So no, if you have a router, and a modem, or a router//modem, then you need to set up a static ip for your home network in order to portforward ports to specific ips. Don't skip that step.

--------> You are [Here]
A caution tape that says: DO NOT CROSS : CRIME SCENE is ...
....<---------------[Here]-------------------->
--------> PortFordward.com is .......
......... [Here].

My point is, you can take 20 minutes to port forward manually for FREE, or spend $29.95 on a pointless program that takes 10 minutes. You decide.

Manual port forwarding is more reliable anyway, since you see what you're doing. It's not easier, but it's free

Definitely don't buy a program for it, it takes around 5 minutes to do it manually.

Slightly offtopic, anyone here know why my ipconfig only appears for a second and then disappears?

Because the console closes when any program is done running. You have to go to start->run and type cmd and then use ipconfig there.

Ah. I was Windowskey+r, then typing ipconfig and enter.

If you can't find a free* forwarding program, look up your router model and call your manufacturer for instructions on what to do. Each router is configured differently, so looking up a similar model won't work.

I still don't understand why portforward.com can't be used... It's really simple and is free... you don't need a program.

Portforward has instructions on how to do it for free, which is why it was linked. There's no reason to ever use a port forwarding program other than the GUI on the router. Most routers are configured the same, or have the same options, so if you just read the instructions, it's not hard to figure out.