What error code was it exactly? Did you get it from the Launcher app, or from ESO itself (log-in screen)?

There's a knowledge base article specifying the ports that need to be open on the router. The AirPort Utility has a section called "Port Settings" in the "Network" tab. But please note: this configures unconditional port forwarding of IP packets with matching port numbers from the router to a host within your network, and this shouldn't be necessary at all under normal circumstances (i.e. the router uses NAT, and automatically accepts incoming packets for connections which were opened from the inside).

You could try to temporarily disable the OS X firewall to see if this solves your issue. Go to

Apple Menu > System Preferences... > Security & Privacy > Firewall

open the lock (admin rights needed), then click "Turn off firewall". Note that this is a potential security risk, and it's better to add a permanent exception for either the Launcher or ESO to the Firewall Options.

Also the error came from the login screen.

I don't have any anti virus stuff running so I'll try the ports now.

Nocturnal_Norsku wrote: »

I opened the ports and I'm still getting the same error.

And right on cue, the Game Consultant tool is broken (mine has a size of zero bytes). Could you try yours? You can find it in the Launcher -- click Settings (cogwheel), then About. If that doesn't work, try the things I've suggested here.

@Moonraker (where is he anyway? Come back, we're B2P now ^^) has also suggested some things to try in the past.

If all of this doesn't help, open a support ticket here: https://help.elderscrollsonline.com/app/ask

And also I know it's a network problem with my network because I'm at a friends house right now and it works fine so I'll try that stuff when I get home.

I guess I'm just gonna have to wait until the support staff contact me because none of that worked.