Raynsideways

In accordance with the "READ BEFORE POSTING" thread: I HAVE READ THE HOW-TO THREAD

Now, to my actual issue. I installed the C&C online launcher and actually got it to work properly, and I was able to play games with my little brother on C&C3 Kane's Wrath. The problems started (seemingly) when I and my computer went back to university. When I attempt to launch the games via C&C Online, the launcher freezes upon me clicking either C&C3 or Kane's Wrath on the launcher. Then, (in the case of Kane's Wrath), separate instance of the launcher opens behind it. If I attempt to launch Kane's Wrath from this second window (the other one is still frozen, mind you, and is only killable via Task Manager), it will start the game, but attempting to log in to C&C Online gives me the "Cannot connect to C&C Online servers" message.

Attempting to launch C&C3 just causes the launcher to freeze--no secondary window.

Regarding my university (as I realize university firewalls can be finicky): The firewall they have on the network (separate from my own, which has had no conflicts with Online) doesn't seem to have any problems, and I haven't had games or anything conflict with it. That said, if the problem somehow ends up being with the firewall, I'm basically screwed since they have a no-concessions policy. I have almost zero information about their firewall beyond "There is one" and "We're not changing it for you" thanks to a lovely lack of communication from the university.

I have tried hooking and unhooking both games as well as reinstalling the C&C Online launcher, all to no avail. I also tried running the launcher in Windows XP Compatibility mode due to receiving the error "CA public key patching routine failed" a few times inexplicably--I can't reproduce this error for some reason. 

I originally thought the source of this problem was mods (The C&C3 Essence mod, in particular) I had installed in C&C3, but uninstalling the mods didn't fix the issue or affect it in any way. I am running the games on Windows 8.1 via Origin, as part of the Command & Conquer Ultimate Collection. I also have Bibber's fixed Command & Conquer launchers installed (which solved an issue I was having with missing ssleay32.dll errors when attempting to use mods). Both games work perfectly fine on their own, mods included. The problems only start when I try to launch them directly from the launcher or launch them while they are hooked to it.

I also had one random instance where I attempted to launch C&C3 via the launcher; it displayed the game's logo as though it was getting ready to start, and then nothing happened. I don't know if this makes any difference but I also installed Desura to manage my mods recently.

Also, I checked my C&C Online Error log, and it is empty.

EDIT: I just tried running Red Alert 3 (the only other game aside from C&C3 and Kane's Wrath I have installed from the collection). It does the same as C&C3--produces the opening logo, and then nothing. Red Alert 3 also runs fine on its own.