Certified GKH Gardening Expert
If the plant is potted, the brown fronds could be an indication that it is root bound and not getting enough water. This article will help you check for that:
If the palm is in-ground, especially newly planted, there may be air pockets in the soil, which are preventing the roots from taking up water. This can be alleviated by flooding the area with water and tampling down the soil around the plant to collapse any air pockets.