I am flying SEA-LAX on AS today, connecting to FJ LAX-NAN. This is an AS award ticket on one booking.

AS have checked my bag through to NAN but can only issue a boarding pass to LAX and advised me to obtain the onward boarding pass at LAX. I am unable to check in on the FJ website.

AS insists that I can get the onward BP as the TBIT in LAX, but FJ says I have to go landside.

Who is correct?