The ornamental design for a dockconnector, as shown and described.
FIG. 1 is a front perspective view of a dock connector.
FIG. 2 is a front view of a dock connector.
FIG. 3 is a rear view of a dock connector.
FIG. 4 is a left side view of a dock connector.
FIG. 5 is a right side view of a dock connector.
FIG. 6 is a top view of a dock connector; and,
FIG. 7 is a bottom view of a dock connector.
The evenly spaced broken lines shown in FIGS. 1-7 illustrate portions of the dock connector. The additional evenly spaced broken lines shown in FIGS. 1, 6, and 7 illustrate callouts of enlarged portions. The dash-dot lines shown in FIGS. 1, 6 and 7 illustrate boundary lines. None of the broken lines form part of the claimed design.