this post was submitted on 18 Mar 2026
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I'm late to the party, but could everyone answer me this- how often does you're public IP actually change with any of your ISPs??
With the numerous companies I've used, the ONLY time I've ever seen my IP change is getting a new modem through, say, Comcast or whoever. It goes by MAC address, and if you use Comcast and then set to bridge mode and use your own device, that's a new MAC so you'd get a new public IP. Swap ISPs obviously a new IP.
I've NEVER randomly received a new IP when using the same equipment consistently, so I'm not sure why everyone's so worried about dynamic DNS stuff.. Maybe outside the US is different? I've lived in a few States and it's always the same. If you make a hardware change, just note you should also double check your IP and update it, that's all.
Mine has stayed the same for about 3 years now. My friend has theirs change any time there's a power cycle so a handful of times every year between power surges and firmware updates.
Oh wow! That's pretty excessive lol. Is it CGNAT maybe?
Mine would go years without changing. The last few changes were caused by things like the upstream DHCP server failing and being replaced.
Daily around 3 or 4 am (I can sort of control it by doing it within a timeframe.)
Really??? That's insane it resets so much! Who is your ISP?
This is usual in Germanx on DSL.