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Forum Discussion
czarR
Dec 18, 2025Tutor
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...
- Dec 22, 2025
I was able to resolve this by switching to ap mode and trying to connect directly to modem and revert back to router mode at which point it started working again. Basically, switching to ap mode and reverting back perhaps force triggered to generate a new ip.
czarR
Dec 18, 2025Tutor
Yes, I did follow same steps already. Made sure I power cycle the modem first then connect to Orbi. It still did not detect the internet which is the very first step.
FURRYe38
Dec 18, 2025Guru - Experienced User
So the RBR had been working up until the power surge?
Wondering if something did something to the WAN port.
Might try this if you have one, put a non managed 1Gb LAN switch in between the modem and RBR. Connect only the modem and RBR to this switch.
If this fails as well, you may need to maybe put another router in place then configure the RBR for AP mode.
Or use the double NAT condition.
Lastly would be a 30-30-30 reset.
- czarRDec 19, 2025Tutor
Yes, as I mentioned in my OP I installed tplink be3600 in the middle and it is now working fine. But I want to be able to connect to the modem directly.
- FURRYe38Dec 22, 2025Guru - Experienced User
You'll need to check with the ISP to see if there is any special configurations needed if directly connecting the RBR to there modem.
Check to see if Static maybe needed on the RBR instead of DHCP.
Might try this if you have one, put a non managed 1Gb LAN switch in between the modem and RBR. Connect only the modem and RBR to this switch.
If this fails as well, you may need to maybe keep another router in place then configure the RBR for AP mode.
Or use the double NAT condition.
- czarRDec 22, 2025Tutor
I was able to resolve this by switching to ap mode and trying to connect directly to modem and revert back to router mode at which point it started working again. Basically, switching to ap mode and reverting back perhaps force triggered to generate a new ip.