This thread is now archived and closed to new comments. Some of the links and information provided in this thread may no longer be available or relevant. If you have a question please post a new topic.
The Sagemcom F@st5355 does have a maximum0f 16 reserved LAN IP address (Static LAN IP) but I don't no of any limit on the LAN IP address available for connected devices apart from the theoretical one of 254. You could try disconnecting one of the connected devices and see if you can then connect one of the other devices that are not connected.
The modem does store the LAN IP address off previously connected devices that are no longer connected for at least 24 hours. Rebooting the modem should release all the LAN DHCP leases which will make them available to connect to other devices.