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R7000 time synch repeating often all of a sudden?
This started a day or two ago. =========== [Time synchronized with NTP server] Saturday, Nov 18,2017 06:22:06 . [Time synchronized with NTP server] Saturday, Nov 18,2017 04:59:15 . [Time syn...
Hi IrvSp,
If you reboot both router and the modem, will it have the same problem?
The data you show looks like the WAN DHCP, the public IP address your router gets from your ISP. The other DHCP would be your LAN, the private IP addresses your router gives to all your wired/wireless devices. DHCP should not need to renew the IP addresses for one day/day and a half/two days depending on your ISPs configuration.
Is the time zone set correctly on the router? This can cause issues with NTP, which may also cause the DHCP lease to time out early.
NTP should also typically only be about a once a day sync. NTP can also be triggered by the router losing the Internet connection. Because it's hard to know how much the clock has drifted while the device is "disconnected", it would immediately trigger a NTP sync. Yes, it would make sense to know how long you may have been disconnected to know if time needs to be synced, but its just easier to check time every time Internet is connected just in case the clock is wrong/broken.
Thanks, knew all that info.
I came here due to push-back from ISP. Took some doing and calling. I can access the Event Log on the Modem, and was able to 'ask' them to look at it. Conclusion was that I had an 'old' modem. Charter recently took over my ISP (Brighthouse) and they didn't use the Ubee DVW3201B modem/phone combo, so they replaced it with an Arris. Even that didn't solve the problem. Matter of fact, the Arris within 2 days started rebooting at least once a day. Another call and they 'discovered' that they still had my line running with the old Ubee configuration file. Changed that, still happened. Another visit and they discovered although everything looked good inside the house my line tap was bad. Replaced that, problems persisted. Another visit. Very thorough this time. Tech looked at all connections, discovered 3 that had some corrosion and replaced them. Also the Ground block had some discoloration so replaced that. I had a snapshot of the voltages and SNR before he started and all were better after he left.
It took a few days for the modem to stop rebooting after the last visit. From the modem logs it appears that was caused by the line tap problem. The probable cause of why the configuration files were not changed on the back-end when the modem was replaced. It might have taken a few times for the modem to get sync'ed with the back-end even.
Unfortunately the approximate time for a lease still is around 2 hours. ISP tells me that is on their end and they don't know why?
Since the other fixes have been done my browsing experience and other programs that use the internet is much smoother. Even with the DHCP and Time requests happening quite often.