On Tue, 04 Feb 2014 19:44:01 +0000, A mom who needs help.
wrote:

Hi,

I have a lamp post that trips my GFCI in my powder room. It seems to
happen when the ground is wet. When this GFCI trips it effects all
bathroom outlets and one bathroom light. I was told the lamp post should
not be wired to the GFCI at all. How do I rewire that at the GFCI?

Is the lamp post in the front yard or in direct proximity to a pool /
patio area in the back yard?

GFCI's do fail and should be replaced when they do.