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czarR's avatar
czarR
Aspirant
Dec 18, 2025

RBR 750 router not connecting after spectrum outage (modem eu2251)

Yesterday after the outage my RBR 750 won't connect to the spectrum router therefore without internet. I followed the steps below and still did not help. Please suggest   1.) I did power cycle mode...
rbk750
rbke960
czarR's avatar
czarR
Aspirant
Dec 18, 2025

Spectrum EU2251 is the modem. Using a brand new CAT6. IPV6 is disabled. Tried cloudflare DNS but no luck.

 

Yes, Ethernet PC is excellent. 

FURRYe38's avatar
FURRYe38
Guru - Experienced User
Dec 18, 2025

And after you reconnect the RBR to the modem, you power OFF the modem for 30 seconds then back ON then power ON the RBR?