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10 Troubleshooting
Problem
The PV System Setup Assistant lists
none or not all of the new SMA de-
vices that are connected via Speed-
wire.
The PV System Setup Assistant lists
own and third-party devices.
70
HoMan-IA-en-20
Cause and corrective measure
DHCP is not activated in your router.
Corrective measures:
• Activate DHCP in the router.
• If your router does not support DHCP, configure the
static network settings on the Speedwire device
using SMA Connection Assist. You can obtain the
SMA Connection Assist software free of charge from
the download area at www.SMA-Solar.com.
The router/network switch used in the network deactivates
the LAN ports when they appear to be inactive in order to
save energy. As a result, it is not possible to establish any
connection to the SMA device.
Corrective measures:
• Configure the router/network switch so that the LAN
ports are not deactivated.
The network switch used in the network uses IGMP snoop-
ing. This means that the connection to the SMA device is
interrupted due to apparent inactivity, and cannot be sub-
sequently restored.
Corrective measures:
• Deactivate the IGMP snooping function in the
network switch.
The firewall may not have been set up correctly.
Corrective measures:
• Enable ports 9523 and 3478 in the firewall (see
firewall documentation).
The firewall or IP filter may not have been configured cor-
rectly.
Corrective measures:
• Adjust the firewall or IP filter settings (see firewall- or
router documentation).
A different BLUETOOTH system within radio range of the
Sunny Home Manager is using the same NetID as your
BLUETOOTH system.
Corrective measures:
• Find a free NetID for your system using
Sunny Explorer (see Sunny Explorer help).
• Adjust the new NetID in all devices.
SMA Solar Technology AG
Installation Manual
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