After a recent firmware update to the Cisco DPC3939 gateway, I can no longer access the admin page and the 5GHz band has no internet access. The 2.4GHz band is working normally. I also can't access the admin page when hardwired. I've reset the gateway multiple time with the same problem. Have not done a factory reset yet, since I'll be unable to change the SSID and password if I still can't access the admin page. Wondering if anyone has encountered the same problem and have a solution for this.
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