Universal Garage Door Opener

[ezcompany]

Hey guys
So I moved into my new apartment. Problem is, after having coded the garage door opener, it will not open the garage when I'm trying to enter the complex.
It will work from the inside, when I'm trying to leave the complex. This means it is coded correctly, but the signal is very weak.
To further add to the insult, my roommate drives the 2002 X5 and has NO ISSUES whatsoever going in and out with his garage door opener.
Is there anything I can do to strengthen the signal? Or is this garage door opener essentially an expensive piece of crap option?