i believe the pole in question is GJ68 BK which is on Dupont Circle at the bend at the bottom of the hill. the one from Leigh above is on Kinsey Street.

oops, the one noted by Leigh is at the corner of Dupont and Kinsey so it may be the correct one. i know the one I listed goes on and off constantly.

It is the one right in front of 102 Dupont Circle.

Seems to have been fixed.