I have Frontier Vantage fiber internet in CT and the connection drops almost every day around 3pm (sometimes ~2:50, sometimes ~3:15, sometimes in between). Whenever it drops, there is a series of log entries on the modem (Arris NVG443B), which I've pasted below. I have tried another modem with similar (and worse additional) issues and I had the ONT replaced as well. To the extent it's relevant, I have my own router plugged into the modem and all of my devices connected to it. I left a device connected directly to the modem for several days and confirmed that it also lost connection, so believe that means my router isn't part of the issue. Also to the extent it's relevant, I had these same issues when I was using Frontier's default DNS instead of 8.8.8.8/8.8.4.4.
Any ideas?
15:08:14-04:00 L3 sdb[2155]: dns_update_resolver - add nameserver[1]: 8.8.4.4
15:08:14-04:00 L3 sdb[2155]: dns_update_resolver - add nameserver[0]: 8.8.8.8
15:08:14-04:00 L3 sdb[2155]: dns_update_resolver - start
15:08:13-04:00 L3 cwmp[4879]: DSLF_WANIPChgProc 2
15:08:13-04:00 L3 sdb[2155]: ioctl(SIOCGIFADDR) on 'br2' failed (Cannot assign requested address)
15:08:06-04:00 L3 sdb[2155]: WANAUTOD: wan_ifdown, failed getting IFFLAGS () - No such device
15:08:06-04:00 L3 sdb[2155]: hnc: ignoring schdlr_state:idle update_schdlr: 2
15:07:52-04:00 L3 sdbh_wanprobe_11279[11279]: dhcp vendor class name given. "MOTOPIA_NO_VC"
15:07:41-04:00 L3 sdb[2155]: WANAUTOD: wan_ifdown, failed getting IFFLAGS () - No such device
15:07:41-04:00 L3 sdb[2155]: hnc: ignoring schdlr_state:idle update_schdlr: 2
15:07:33-04:00 L2 supp1x[3265]: Supplicant event = FAILURE
15:07:28-04:00 L3 sdbh_wanprobe_11140[11140]: dhcp vendor class name given. "MOTOPIA_NO_VC"
15:07:28-04:00 L3 sdb[2155]: hnc: ignoring schdlr_state:idle update_schdlr: 2
15:07:24-04:00 L3 sdb[2155]: EWAN: Port wan is UP. (eth0) speed 1000 duplex full
15:07:24-04:00 L3 sdb[2155]: WANAUTOD: wan_ifdown, failed getting IFFLAGS () - No such device
15:07:19-04:00 L3 sdb[2155]: dns_update_resolver - add nameserver[1]: 8.8.4.4
15:07:19-04:00 L3 sdb[2155]: dns_update_resolver - add nameserver[0]: 8.8.8.8
15:07:19-04:00 L3 sdb[2155]: dns_update_resolver - start
15:07:19-04:00 L3 sdb[2155]: can't remove assigned address (32.218.184.152) from iface (br2)
15:07:18-04:00 L3 dhcpcd[10349]: br2: send_packet: Operation not permitted
15:07:18-04:00 L3 sdb[2155]: EWAN: Port wan (eth0) is DOWN
15:07:18-04:00 L3 sdb[2155]: WANAUTOD: wan_ifup, failed getting IFFLAGS () - No such device
15:03:39-04:00 L3 sdb[2155]: dns_update_resolver - add nameserver[1]: 8.8.4.4
15:03:39-04:00 L3 sdb[2155]: dns_update_resolver - add nameserver[0]: 8.8.8.8
15:03:39-04:00 L3 sdb[2155]: dns_update_resolver - start
15:03:38-04:00 L3 cwmp[4879]: DSLF_WANIPChgProc 2
15:03:37-04:00 L3 sdb[2155]: ioctl(SIOCGIFADDR) on 'br2' failed (Cannot assign requested address)
15:03:25-04:00 L3 sdb[2155]: WANAUTOD: wan_ifdown, failed getting IFFLAGS () - No such device
15:03:25-04:00 L3 sdb[2155]: hnc: ignoring schdlr_state:idle update_schdlr: 2
15:03:12-04:00 L3 sdbh_wanprobe_10202[10202]: dhcp vendor class name given. "MOTOPIA_NO_VC"
15:03:00-04:00 L3 sdb[2155]: WANAUTOD: wan_ifdown, failed getting IFFLAGS () - No such device
15:03:00-04:00 L3 sdb[2155]: hnc: ignoring schdlr_state:idle update_schdlr: 2
15:02:50-04:00 L2 supp1x[3265]: Supplicant event = FAILURE
15:02:45-04:00 L3 sdbh_wanprobe_10049[10049]: dhcp vendor class name given. "MOTOPIA_NO_VC"
15:02:45-04:00 L3 sdb[2155]: hnc: ignoring schdlr_state:idle update_schdlr: 2
15:02:42-04:00 L3 sdb[2155]: EWAN: Port wan is UP. (eth0) speed 1000 duplex full
15:02:42-04:00 L3 sdb[2155]: WANAUTOD: wan_ifdown, failed getting IFFLAGS () - No such device
15:02:37-04:00 L3 sdb[2155]: dns_update_resolver - add nameserver[1]: 8.8.4.4
15:02:37-04:00 L3 sdb[2155]: dns_update_resolver - add nameserver[0]: 8.8.8.8
15:02:37-04:00 L3 sdb[2155]: dns_update_resolver - start
15:02:36-04:00 L3 sdb[2155]: can't remove assigned address (32.218.184.152) from iface (br2)
15:02:36-04:00 L3 dhcpcd[26890]: br2: send_packet: Operation not permitted
15:02:36-04:00 L3 sdb[2155]: EWAN: Port wan (eth0) is DOWN
15:02:36-04:00 L3 sdb[2155]: WANAUTOD: wan_ifup, failed getting IFFLAGS () - No such device
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