Sony PCWA-A220 - Manual (Page 34)

Cable Modem mode
I cannot conne ct to the Inte rne t w ith m y cable m ode m .
Depending on the details of the agreement w ith your contracted cable operator, there are cases in w hich only one client can be connected to one cable
modem. In this case, your cable modem remembers the MAC address of the PC netw ork card that you have connected until now . It rejects requests for
connections to the Internet from anything other than that MAC address.
How to handle
Turn off the pow er to the cable modem that you use and w ait for a few seconds. Doing so w ill cause it to delete from the cable modem the MAC
address that it has stored.
Also, depending on the cable television company w ith w hich you have an agreement, the MAC address may be registered. If this is the case, you may
need to request a change of the MAC address to your cable provider.
Either refer to the cable modem operations manual or contact your cable television company for details.
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