Not entirely sure what you mean by 'configure the interface'. Sorry for the noobiness; been raised as a Windows user my entire life.

But I'll make sure to run that when I can get to the office in the morning.

Hi,
Try to use the wifi. Just because your computer has wireless doesn't mean it will automatically connect to the to an access point. As I understand it, on Mint this is normally done by networkmanager which is triggered when the user logs in.
Same thing goes for windows. At some point something has to initiate the connection.

Evo2.

The thing with this computer is that there's a colored light. The WiFi light that signals whether or not WiFi is 'enabled', so to speak. Even the WiFi switch doesn't necessarily turn it on, and this problem only started with Linux as a result as its poor support for Broadcom WiFi cards. You can tell if it's going to work when you first turn the computer on, and if the light isn't on after you input the sda5 crypt password and all checks are complete then only wireless. Otherwise, WiFi will be completely disabled. No going to any settings, network manager etc can change that and you have to restart/power off. Irritating thing with Broadcom and Linux. Now the light refuses to turn on, no matter what. The WiFi has been annoyingly disabled and I don't know exactly why.

Hi,
Really? Did you check its status with iwconfig and "rfkill list all"?

Does this mean that you are giving up on the wireless and instead will try with the wired network?

Evo2.

iwconfig gives negative results every time.

The other one listed says

which I find strange since last time I checked it said yes and it was enabled in the BIOS menu, hm.

Yes, I'll likely resort to the wired connection in the morning.

After a bit of messing around, I got the light on with 'ifconfig wlan0 up'. Still can't connect to my wireless network though, irritatingly. And the wired still has several issues.

I don't have an 'eth0' device, according to the terminal. 'ifconfig eth0' results in:

Same result with eth1, eth2, etc.

Hi,

running 'ifconfig -a' will show all recognized network devices. You should probably also run "lspci -v" to show all pci devices (including your network devices) and the kernel drivers that are used.

Evo2.

Got myself connected to WiFi a couple days ago and I can ping, install packages, etc. What I found a couple days ago is that when using the lspci command, I have an Intel graphics card but the only driver I have installed is radeon, aka the wrong one. But the Intel installer is only for Ubuntu. Well great.

Hi,

What intel installer? Mint has xorg drivers for intel devices. Eg
Evo2.

Every time I've tried that within the past few days, it comes up with an error. Usually it can't connect to a certain ftp.

Oh, no. My issue is that it has unmet dependencies, and when I try and install the needed package, it says it's a virtual package provided by xserver-xorg-core 2:1.15.1-0ubuntu2 [Not candidate version]. So it has no installation candidate.

Hi,

when reporting errors, you need to report the *exact* error. Ie cut and paste the commands you ran and the output from the terminal session into your post (inside [code] tags). For example if you want help installing the intel driver run the following:
then post everything from that terminal here.

Evo2.

For sudo apt-get update, it says,

E: Some index files have failed to download. They have been ignored, or old ones used instead.

And for the other, http://i.imgur.com/2PDEBli.jpg

Hi,
As I stated earlier, you need to post the full output of the commands.

Evo2.

http://i.imgur.com/y4A8LEe.jpg
http://i.imgur.com/wLxBAx5.jpg