Internet connection drops once per hour (WAN lease time drop?)

dyaxi

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Jan 26, 2015
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Once per hour, or just under, my internet connection will drop for a few seconds with any websites presenting a DNS resolution error for a little before my internet comes back up. This always happens without fail, and I've yet to find a solution amongst similar issues on this forum and on Virgin Media's forum (My ISP). I've followed quite a few threads on here over the past week talking about DHCP reservation issues, creating a static IP on the computer, lease times, etc but nothing seems to stop this issue.

I've edited my DHCP reservation to be weekly, it still dropped out on the hour. I created a static IP, still drops out on the hour. Then I noticed on the Virgin Media Super Hub 'Device Status' page that there is something titled 'Connection' and that under it is an hour count down relating to a lease time that seems to be separate from the DHCP lease time that seems to coincide with when my internet drops. I can't find any information about what this exactly is (though I suspect it is related to WAN lease times?) or whether I can even edit it to take longer to stop hourly disconnects.

Any help would be appreciated.
 
Solution
You can not set the WAN lease time. Any dhcp setting on your router are related to the LAN. The ISP is in full control of the DHCP server used to assign IP to the WAN.

It shouldn't cause a problem but the ISP may have something configured incorrectly. At 50% of the lease time the end device will make a attempt to renew the lease on the IP. If that fails it generally checks again 1 or 2 time but varies a bit by implementation. The only time the router should drop the connection is if it hits the expire. It then send out a "give me a new ip" type of dhcp request rather than renweal.

There is not much you can do on the wan side. Maybe you could assign a static ip but in general you must pay most ISP to have that option.

I...
You can not set the WAN lease time. Any dhcp setting on your router are related to the LAN. The ISP is in full control of the DHCP server used to assign IP to the WAN.

It shouldn't cause a problem but the ISP may have something configured incorrectly. At 50% of the lease time the end device will make a attempt to renew the lease on the IP. If that fails it generally checks again 1 or 2 time but varies a bit by implementation. The only time the router should drop the connection is if it hits the expire. It then send out a "give me a new ip" type of dhcp request rather than renweal.

There is not much you can do on the wan side. Maybe you could assign a static ip but in general you must pay most ISP to have that option.

I would call the ISP and ask them why they have a 1 hour lease time.
 
Solution