# FTL Offline

**URL:** https://discourse.pi-hole.net/t/ftl-offline/14800
**Category:** Deutschsprachige Hilfe
**Created:** [December 1, 2018, 11:07pm UTC](https://discourse.pi-hole.net/t/ftl-offline/14800 "2018-12-01T23:07:10Z")
**Posts on this page:** 1
**Showing post:** 4

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### Author: ![jfb](https://discourse-cdn.pi-hole.net/user_avatar/discourse.pi-hole.net/jfb/32/4332_2.png) [@jfb](https://discourse.pi-hole.net/u/jfb)
#### Post date: [December 2, 2018, 2:07pm UTC](https://discourse.pi-hole.net/t/ftl-offline/14800/4 "2018-12-02T14:07:24Z")

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You have another DNS service running on port 53 (BIND9?) which is preventing FTL from running on that port.

> [@Problem after updating "lost connection to api"](https://discourse.pi-hole.net/t/problem-after-updating-lost-connection-to-api/12487/7):
>
> Your debug log shows that "named" process is on port 53, which prevents pihole-FTL from using that port. \*\*\* [DIAGNOSING]: Ports in use \*:53 named (IPv6) 127.0.0.1:53 named (IPv4) 127.0.0.1:953 named (IPv4) [::1]:953 named (IPv6) 192.168.2.170:53 named (IPv4) \*:22 sshd (IPv4) \*:22 sshd (IPv6) \*:80 lighttpd (IPv4) \*:80 lighttpd (IPv6) Typically "named" is BIND9. Find that process on your Pi - these commands may be helpful: sudo netstat -nltup | grep 'Proto\|:53 \|:67 \|:80 \|:471' sudo lso…

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