The steps to check for a correct ZigBee operation are

1. Base

a) check the base is powered up (PWR light ON).
b) Network status LEDs 1,2 are toggling.
c) check that the base is set for base operation (DIP SW B 3 OFF - confirm Base starts with LED 1 ON).
d) use the base Program Station Setup dialog to check Base Mesh ID has not been changed (See Program Station Setup Base)
e) use MicroScan Interface, Find Stations to find a base on a dataloop.
f)  for technical support, note the positions of DIP SWA, DIP SWB.

2. Remote

a) check the remote is powered up (PWR light ON).
b) Network status LEDs 1,2 are toggling.
If the LEDs 1,2 are flashing at the same time, it means that the remote cannot connect to the base - either the radio signal cannot get through or the base/remote have a wrong mesh ID set.
If LED 1,2 both stay on at the same time, the remote node is set to an invalid address.
c) check that the remote is set for remote operation (DIP SW B 3 ON - confirm remote starts with LED 2 ON).
d) check that the BASE is set for All Types Operation (BASE: DIP SW B 5 ON). 
e) check that the remote is set for a unique node address on DIP switch A.
f)  for technical support, note the positions of DIP SWA, DIP SWB.

You can use Program Station Setup Base, Find Stations tab to search for stations attached to a remote. 
The Program Station Setup Base, Base Information tab shows a list of the remotes currently connected to the base.

3. Sleeper.

The sleepers LEDs are only active when the sleeper first starts, so it is necessary to power down and then power up the sleeper to check the activity of the LEDs (or press the reset button on the front of the sleeper with a small screwdriver).

a) cycle the power of the sleeper (by turning DIP SW B 8 OFF, and then ON again), check that the LED 2 stays on for approx 5 seconds.
b) after the startup time, check the Network Status LEDs for correct Activity.
LEDs 1,2 toggle for 5 seconds indicating a good sleeper to base connection.
LEDs 1,2 are flashing at the same time, it means that the sleeper cannot connect to the base - either the radio signal cannot get through or the base/sleeper have a wrong mesh ID set.
c) on a single base to sleeper site, check the Base DIP Switch B, 5, this should be OFF. This switch is ON for any sites that have a mix of base & remotes. If B 5 is ON, at least ONE remote must be powered up ALL THE TIME and the sleeper connects to this instead of the base.
d) check that the sleeper is set to a unique node address on DIP SW A (two sleepers set to the same node address will update the base at different times, but the base will only think it is one sleeper connected).
e) use XU Setup software to check that sleeper Mesh ID has not been changed. See Sleeper Setup.

Note: DIP SW B 8 Battery Power is only used to switch battery power on/off. Plug pack power can only be turned on/off by removing the plug pack power connection by unplugging the power terminal block, in this case pressing the reset button on the front of the unit is more convenient.

The Program Station Setup Base, Base Information tab shows a list of the sleepers currently connected to the base.