Bridge won't stay connected

Hello All, New Brige and Battery flood light. Paired it all on the desk frist and all worked. Mounted Light and now the bridge will not stay connected. If I reboot the bridge it connects to the light but then drops it. I can see the bridge in the app and says -41 signal. When it did connect to the light the signal was -27 on the light. I have moved the bridge around the house. distance from bride to light is 15 feet with a window in between. Thank you for your help