and likewise what difficulty level/act are you having trouble in? Chance to hit scales depending on the difference between clvl and monster level. You may just be trying to do an area that's too rough for you at your current level.
This probably isn't the issue though, seeing as how you're wearing Highlord's and pieces of the IK set, so you're obviously over 70 or so. Still though, you generally don't hit the even balance in clvl v mlvl until you get to about 80-85.