Dead Space 3 unable to connect to EA servers

There are a couple things that can cause this and this is what immediately comes to mind.

Is your computer connected to the internet through a router? Has anyone ever configured ports (port forwarding) on the router to host other games? If so, you may need to disable those port forwards.

If you are on a shared connection, such as an office connection or school dorm, you may have issues if those ports are already in use by another computer on the network.

You may also need to check if your Antivirus software includes its own software firewall and disable that as well.

I'm not sure if that helps, but its a start.

I messed with port forwarding at one point to host a Minecraft server. Is there a guide or place to start to see how to revert these changes?

Router configuration varies by manufacturer. In most situations, you can access your router configuration page at:

http://192.168.1.1

The username and password is usually some variation of admin/admin or no username and just "admin" for password if they are left to their factory values.

There should be a menu option specifically for port forwarding. Usually you can just toggle them off so that you can easily reactivate them later.

If you no longer have access to the username and password you will need to reset the router to delete any port forwards. However, if you have a DSL connection, you will also likely lose the stored username and password for your connection and it will need to be set up again. Cable connections do not commonly require such a configuration.

EDIT: Also, is someone else at your house logged into Dead Space 3? You may need to enable UPNP on your router. This is usually found in an advanced or professional screen on your router in the same category as port forwarding.

I looked under "Port Range Forwarding" in my Router's settings and there appears to be nothing forwarded, and thinking back I reset the router to factory default after I had messed with the port forwarding as well.

However, I am at a home computer that shares the network with 2-3 other computers and various devices. What steps can I take to see if this is the issue?

EDIT: Also no, I am the only one with the game in the house. and I do not have DSL.

See above and check if you have UPNP enabled. Its a long shot but sometimes that works (its a protocol to temporarily open up ports when applications request them).

I don't have it enables for anything, if I do enable it what type of application do I enable it for? (FTP, Telnet etc)

UPNP is not a port forward, it is a setting that you can enable (usually just a check box).

EDIT: You wouldn't happen to have Rogers internet in Canada would you? Random question I know, but they don't give their customers actual internet IP addresses and it plays hell with connections.

Also unfortunately its 12:11am here and I've got to be up for work at 6:00am (fun! not really).

If I am able to, tomorrow I will try to see if your issue has been resolved.

Why on earth are you talking about enabling ports and * on routers it should be http or https. Why on earth would you need to do all this useless stuff when all people want to do is play a game. Origin has been * from the start. Where can I get a refund for my Origin games that I cannot play?

Fresh install, Turned off all firewalls disabled antivirus and ports are free on Router. Everyone seems to be having activation issues from the very start of origin for many many years. What on earth are you people doing? can you not do anything right! As a developer I am appalled at the standards of such a long standing company. It's a joke of a company e.a we ruin everything! My Grandmother could write an activation process better with a spoon and fork. Sort it out pile of Junk!