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IP address renews every hour on the hour
There's something amiss with DNS IP address renewals for the past three months with my connection. What happens is that my firewall submits a DNS request, the Comcast DNS server does not renew my IP for a few seconds, and then gives me back the same IP address! Today alone it's reliably happened every hour on the hour, which is the DNS refresh interval. This means that there are regular, constant internet outages, and it interrupts streaming constantly. How do we get this fixed?
EG
Expert
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121.5K Messages
3 days ago
DNS servers do not renew IP addresses. DHCP servers do. Also, DNS servers are demand-based. They do not continuously ping or query domain names in the background like on a timer. That said, this sounds like the DHCP server settings are somehow set for issuing short-term leases. Can you clarify if you mean WAN/public IP addresses from the Comcast system, or LAN/private IP's from a home router's DHCP server ?
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EG
Expert
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121.5K Messages
2 days ago
No worries ! 😊Ok so this typically happens when they are doing routine maintenance or upgrades to their network. 1 hour leases get issued and many times result in a new / different IP being assigned. This should go back to longer-length leases (3-4 days) being issued when the work is completed.
What puzzles me is that renewals should be completely seamless and not result in any drops....
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EG
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121.5K Messages
17 hours ago
@mikecr Weeks seems like a long time. I can't help directly as I am not a CC employee. I can however, escalate your issue to the Comcast corporate employees (The Digital Care Team) who are available to these boards. You should get a reply here in your topic. Good luck !
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