When trying to find any gate make sure you have a jumpdrive and navigational command software. Then go into you ship commands/Navigation/jump and fly to position and use the number pad controls in the sector you want and put it as far behind which ever gate you want to find and press enter,the auto pilot will find it for you. Im not sure if Jump and fly to position comes with vanilla,its either an update or a script but if it does come with vanilla problem solved.
The other option is you could go across the top through the xenon sector and to grand exchange that way.
"Life is nothing but a competition to be the criminal rather than the victim." Bertrand Russell