Spectrum Modem US/DS lights blinking Light — Meaning & Fixes
US/DS lights blinking on Spectrum Modem: On cable modems like the Spectrum Modem, the US (upstream) and DS (downstream) lights blinking together mean the modem is scanning for and locking onto the Spectrum cable signal..
On cable modems like the Spectrum Modem, the US (upstream) and DS (downstream) lights blinking together mean the modem is scanning for and locking onto the Spectrum cable signal.
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Most likely causes
The modem is searching for the cable signal
The coax cable is loose or damaged
A Spectrum outage or signal problem at the tap
The modem is not provisioned
Try this first
Wait up to 10 minutes for the lights to lock solid
Finger-tighten the coax cable on the Spectrum Modem
Check for damaged coax or splitters
Power-cycle the Spectrum Modem
Check Spectrum outage status
If US/DS never lock, contact Spectrum — signal or provisioning issue