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Troubleshooting
6 Troubleshooting
6.1
Command not confirmed
If at least one receiver does not con-
firm a command, this may be caused
by radio interference
information about radio operation" on
page
26). The error will be displayed
in the app and may be cause by the
follow:
• Receiver cannot be reached
• Receiver is unable to execute the
command (load failure, mechanical
blockade, etc.)
• Receiver is defective
6.2
Duty Cycle
The duty cycle is a legally regulated
limit of the transmission time of de-
vices in the 868 MHz range. The aim
of this regulation is to safeguard the
operation of all devices working in
the 868 MHz range. In the 868 MHz
frequency range we use, the maxi-
mum transmission time of any device
is 1% of an hour (i.e. 36 seconds in an
hour). Devices must cease transmissi-
on when they reach the 1% limit until
this time restriction comes to an end.
Homematic IP devices are designed
and produced with 100% conformity to
this regulation.
During normal operation, the duty
cycle is not usually reached. However,
repeated and radio-intensive pair pro-
cesses mean that it may be reached
in isolated instances during start-up
or initial installation of a system. If the
duty cycle limit is exceeded, the device
may stop working for a brief period.
The device starts working correctly
again after a short period (max. 1 hour).
(see „9 General
6.3
WLAN frequency range
The Homematic IP WLAN Access Point
works in the 2.4 GHz frequency range.
Operation in 5 GHz frequency range
is not possible. Therefore, make sure
that your smartphone is in 2.4 GHz
frequency range while setting up the
Homematic IP WLAN Access Point. If
this is not the case, deactivate the 5
GHz frequency range of your WLAN
router during setup.
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