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R7000 v1.09.12_1.2.23 DHCP function failing
Since upgrading to this firmware version two weeks ago, the router's DHCP function has failed twice; that is, it stopped issuing/renewing dhcp leases to attached devices. Rebooting the router gets D...
In persuing the DHCP issue, I ended up having to get support from Comcast. My modem was badly provisioned and the line in from the street was off so there was a lot of problems. Since that is fixed, I don't expect further problems.
I haven't had the DHCP problem recur yet.
After my last reset it took it several days to connect to an NTP server and get a valid date/time. When it first connected to the internet the NTP time sync failed and it defaulted to January 1, 2015. OPENVPN complained and failed (of course, bad time). The next time it reconnected to the internet it came up with the date October 3rd even though I reset it in late November. There are a slew of internet connected messages for approximately 20 minutes with a non-routable IP address (192.168.100.10) until there is an internet disconnected message followed by an internet connected message referencing my correct ISP supplied IP address. Then no messages for a long period of time until a correct NTP time sync today.
Bad time synchronization would definitely throw a snag into lease aquisition and expiration. I didn't see anywhere in the administrative interface for specifying NTP server or for forcing an NTP resync.
I haven't had a recurrence of the DHCP problem in the past week, so I'll just keep an eye out for it as it seems to be quite sporadic. My ISP is comcast.
A further update, I just applied the v1.09.14_2.25 firmware.
The log after the reboot shows the firmware initialization, the OPENVPN ntp time synce error message (Jan 1, 2015), internet disconnect and connected messages with a November time stamp (Nov. 7, 2017), followed by a NTP sync message with the correct date and time.
In persuing the DHCP issue, I ended up having to get support from Comcast. My modem was badly provisioned and the line in from the street was off so there was a lot of problems. Since that is fixed, I don't expect further problems.