this post was submitted on 11 Oct 2023
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Every month or so all my devices lose internet and the only way to connect them all back is to disconnect them from the DNS server that Pihole is running.

I set my Pihole to have a static IP but for some reason after around a month or maybe longer, it just fails. This has happened 4 times over the last while and the only fix is to essentially uninstall everything on my Pihole, disable it, and then reconfigure it from scratch again.

I’m not sure what’s going on so any help would be appreciated.

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[–] [email protected] 12 points 1 year ago (16 children)

Do you know if your router is acting as a DHCP server? Most do, and if you’ve set up the Pi as one without logging in and turning off your router’s, you’ve set up two conflicting DHCP servers, and that would explain your issues.

[–] [email protected] 2 points 1 year ago (15 children)

I’m assuming my router is acting like a DHCP server as it’s all on default settings and my other devices are handed an IP address something like 192.168.5.xx

I’m not able to log into my router anymore (tried all the ways: 192.168.2.1, 1.2, 5.1, etc) so you’re probably correct that with both dhcp servers up and running they’re probably conflicting.

[–] Osirus 3 points 1 year ago* (last edited 1 year ago) (2 children)

Plug a pc straight into the router and do an ipconfig /all. It will tell you the router gateway if you don't have a static ip. Go to the gateway ip and turn off dhcp.

[–] Osirus 1 points 1 year ago* (last edited 1 year ago)

Then go to your server dhcp and put a dhcp exclusion for the pi hole ip and anything else you have static'ed

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