No me hagas mucho caso pero creo recordar que la serie aironet 340presentan incompatibilidades con la 350
Cita: Cisco Aironet 350 Series Bridges Incompatible with 340 Series Bridges
Cisco Aironet 340 and 350 Series Bridges can be connected to the same LAN segments, but they cannot communicate wirelessly. Although you can disable STP on non-root 350 series bridges, 350 and 340 series bridges are not designed to interoperate. If you use both 340 and 350 series bridges on your network, make sure the 340 series bridges have radio bridge links only to other 340 series bridges, and that 350 series bridges have radio bridge links only to other 350 series bridges.
investiga si le pasa lo mismo con la serie 1300
salu2