Visitor
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4 Messages
5Ghz network on Arris Router no longer available
Starting about 7:30am EDT on May 26, 2025, my ARRIS SBG6700-AC stopped showing the 5Ghz network that had been working for years.
I had previously set up both 2.4Ghz and 5Ghz networks, and I could now only see the 2.4Ghz one. AND, the firmware on the device no longer allows me to set up both networks.
What has happened? Xfinity controls the firmware on these devices now.
EG
Expert
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110.6K Messages
1 day ago
Have you first tried power-cycling / re-starting the device by unplugging it for a minute ? Still no joy ? Try hard resetting the device to factory defaults by pressing and holding in the recessed reset button on the rear (or use the WPS button if it doesn't have a reset button hole) for 30 seconds. This can sometimes clear up some weird behavior issues. You will lose any customized settings, and they will need to be re-configured from scratch if you do the latter.
Good luck !
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EG
Expert
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110.6K Messages
1 day ago
Good luck with that... Phone reps are not likely to know anything about firmware. And they'll likely tell you that third-party devices are not supported, and to contact the manufacturer.
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EG
Expert
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110.6K Messages
1 day ago
For the Halibut, have you tried the factory reset yet ? It may be futile....
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EG
Expert
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110.6K Messages
1 day ago
Sorry. Oh well.... I've seen plenty of this here.... Don't get another combo modem / router gateway device ! Get a plain vanilla / straight cable modem and a stand-alone router unit. They won't be able to control the settings or change the firmware of a separate router. Good luck !
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