No internet connection with new Netgear N600 DGND3700v2

 i have a linksys 3000 as wireless router, out the back i have cable run to a powerline adapter, comes to other powerlin adapter, which is hooked to a tplink wireless outdoor cpe. model no,. tl-wa5210g. (i use this to shoot internet across a field to another location. at this location is where i am trying to use the range ext.)  the tplink has 3 modes, 1.  ap client router (wisp client router) 2.  ap router (wireless broadband router)  3. ap (access point)    number 3 is what i am using at the time.  the extender says it connects but the light saying its connected to the router never lights up and when i try to connect to it, it starts the configuration page all over again.   thx sd         the ext. is a n300  model ex2700 netgear