Glow can be, and is, solo'd by some players. You don't need much Repair skill to fix the generator (which breaks again soon after you fix it). But you do need high Lockpick skill and, if you're going there at all, you need to be serious about fighting those robots and killing them quickly. They come back so bring extra ammo. Solo it: fix gen on L6 and go straight to L5 and open a locker or two, but go straight back to L6 or you get stuck on L5 and die. To solo it, you have to bounce back and forth between 5 and 6 until you're okay to leave the place. (Although for SOME people, "solo'ing Glow" means using multiple characters and dual-logging, that is not what i mean by it.)
But most of all, pay attention to your rad level and keep using RadAway. You should know how to manage multiple concurrent doses of RadAway in order to survive Glow. It really helps to go there with a team and use either in-game radios or voice chat like Mumble. One player can alert others when is best time to take another RadAway. (You might be wise to bring about 10 each!)
One more tip: if you use LP skill 300 on a locker and it does not open, move on to a different locker. You can fail on the stubborn ones 10 times in a row so don't bother more than twice.