Cannot connect to any servers.

[MarcBuilders]

Ok, here's the deal.
I'm trying to connect to a server and for some reason, the message just either stays there or repeatedly prints "Sending challenge request....." on a new line.
I am connected to the internet on a laptop wirelessly.
I have Windows 7 installed on it.
And my connection settings on Blockland are set to Broadband.
So is there some kind of thing I have to change?
Because I'm thinking to myself maybe I have to connect it with an Ethernet port in order for it to work.

[Ad Bot]

[Dark X-rane]

Check if your firewall's preventing Blockland from connecting to the Internet, that might be the problem.

[MarcBuilders]

My firewall gives me an error. I can't even open it.

[Dannu]

Does this happen with every server or just some?

[Dark X-rane]

My firewall gives me an error. I can't even open it.

Can you quote what the error says?

[MarcBuilders]

This happens with all servers.
And the error message is (verbatim):

Windows Firewall can't change some of your settings.
Error code 0x80070433