PLANET WNAP-3000PE - Manual (Page 12)

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If you can't connect:
It is likely that your PC’s IP address is incompatible with the WNAP-
3000PE’s IP address. This can happen if your LAN does not have a DHCP
Server.
The default IP address of the Wireless Access Point is 192.168.0.228, with
a Network Mask of 255.255.255.0.
If your PC’s IP address is not compatible with this, you must change your
PC’s IP address to an unused value in the range 192.168.0.1 ~
192.168.0.254, with a Network Mask of 255.255.255.0.