What Is Block Sync?
Block sync is the term used to describe a cable, DSL or wireless modem's connection to the Internet. If the modem is connected to the Internet, it is on block sync. If the modem loses the connection, it is experiencing block sync failure.
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Locating Block Sync on a Modem
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Each modem is different, but every modem has indicator lights that display power and connectivity. Most indicator lights on modems are clearly marked; however, in some cases, the connectivity light is not. Refer to the owner's manual or contact customer support for your modem to determine which light indicates connectivity.
Determining Failure in Block Sync
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If you cannot access a website or download email, you may be experiencing block sync failure. Depending on the make of the modem, block sync failure is indicated when the connectivity light is not illuminated, is blinking or is red.
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Troubleshooting Block Sync
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Once block sync failure is established, start by power cycling the modem. First, shut down your computer. Then turn off your modem and unplug all the wires. For DSL modems, unplug the phone cord from the wall. For cable modems, unplug the cable from either the wall or the television cable receiver--whichever yours is plugged into. Allow the modem to set for at least 10 seconds before powering it back on. Start by plugging the modem back into the wall or receiver. Connect the modem to the computer and then reattach the power supply. Allow the modem to power up and then reboot your computer. If this fails, you will need to contact your Internet service provider for further instructions. Possible causes for continued block sync failure include a defect in the modem or network service interruptions.
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References
- Photo Credit cable modem image by IKO from Fotolia.com
