Regular Visitor
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7 Messages
Extend Comcast DHCP Server WAN LEASE TIME to 24 hours
I cannot get anyone at Advanced Technical Support who understands or can Extend the Comcast DHCP Server WAN LEASE TIME to 24 hours. It is current set to 1 hour. Can anyone help?
EG
Expert
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109.1K Messages
3 years ago
No one here will be able to do that either. It is controlled by the network engineers and / or the Headend Techs. Short-duration leases are typically assigned when maintenance and / or upgrades are being performed on the local system. It should return to a longer duration when these are completed.
Are you actually experiencing any problems / connection drops ?
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magnum99
Regular Visitor
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7 Messages
3 years ago
Yes ... after 3 to 4 days I lose 2.4 Internet Connectivity due to a jam in renewing the leases and I have to reboot the modem which clears the jam and starts over. Below is the Luxul Router Log showing the renewed WAN lease time for 7200 seconds (2 hours). It needs to be set to 24 hours (86400). Jack
Wed Jun 22 03:15:00 2022 cron.info crond[3333]: USER root pid 11830 cmd logrotate /etc/logrotate.d/domotz
Wed Jun 22 03:15:58 2022 daemon.notice netifd: wan (3646): Sending renew...
Wed Jun 22 03:15:58 2022 daemon.notice netifd: wan (3646): Lease of 73.77.22.192 obtained, lease time 7200
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flatlander3
Problem Solver
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1.5K Messages
3 years ago
Actually, it shouldn't matter. DHCP renew is supposed to retry on fail. The retry interval usually isn't really exactly random, but hops a bit in increasing intervals. In theory, it should retry forever no matter what the lease time is set to.
There's some tunable parameters if it's ICS's version (most use it) in dhclient.conf https://kb.isc.org/docs/en/isc-dhcp-44-manual-pages-dhclientconf I don't know if you can get to it in your router.
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XfinityRay
Official Employee
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2.6K Messages
3 years ago
Hi, @magnum99. I understand how the shortened lease time can be frustrating. @EG is correct with their comment. Are you noticing any issues with your service other than the short-term lease?
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