Most wooden fence posts that are installed between sections are not cemented in because they will rot the CCA post faster. After the post is installed at the height required, the post is backfilled and the soil is compacted to strengthen the section.
Sometimes rain and heavy winds can loosen the post. Compacting the soil around post again will fix problem. If your fence is under warranty please call office to schedule repair.

Most problems occur when it’s very windy or change in weather from hot to cold this is called heaving. Small adjustments may be necessary, tightening or loosening of the hinge bolt. Before touching you should wait if it is cold out because it may correct itself when it gets warmer. Also check to see if there is any ice on surface because this changes clearance height.