[GH-ISSUE #5336] 2.14.0 messing up ip / network stack #3173

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opened 2026-02-26 07:38:01 +03:00 by kerem · 1 comment

kerem commented

2026-02-26 07:38:01 +03:00

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Originally created by @dvd77 on GitHub (Feb 21, 2026).
Original GitHub issue: https://github.com/NginxProxyManager/nginx-proxy-manager/issues/5336

Checklist

Have you pulled and found the error with jc21/nginx-proxy-manager:latest docker image?
- Yes
Are you sure you're not using someone else's docker image?
- Yes
Have you searched for similar issues (both open and closed)?
- Yes

Describe the bug

The latest version is messing with IP / network stack on the machine. When the latest nginx v2.14.0 is running the IP stack off that VM becomes very unstable / unworkable.
Containers can't reach the internet anymore, Ping to internet is very unresponsive or even the OS doesn't know what to do with a ping to 1.1.1.1 for example.

I have a Ubuntu VM (LTS 24) with several docker containers and I use NGINX only as a internal proxy so that I can use https with letsencrypt internally , this in combination with Homeassistant. The first troubleshooting let me to HA, HA is running in host network mode. When i changed it to docker network it worked again.
Or when I stopped nginx or homeassistant it started working again.

Been troubleshooting very long to find out that this version was the problem from me.
reverting to 2.13.7 fixed all the issues. (costed me a lot a digging before looking at the nginx container)

Nginx Proxy Manager Version

2.14.0

Operating System

tested on Ubuntu 24 LTS and Debian 13

Originally created by @dvd77 on GitHub (Feb 21, 2026). Original GitHub issue: https://github.com/NginxProxyManager/nginx-proxy-manager/issues/5336  **Checklist** - Have you pulled and found the error with `jc21/nginx-proxy-manager:latest` docker image? - Yes - Are you sure you're not using someone else's docker image? - Yes - Have you searched for similar issues (both open and closed)? - Yes **Describe the bug**  The latest version is messing with IP / network stack on the machine. When the latest nginx v2.14.0 is running the IP stack off that VM becomes very unstable / unworkable. Containers can't reach the internet anymore, Ping to internet is very unresponsive or even the OS doesn't know what to do with a ping to 1.1.1.1 for example. I have a Ubuntu VM (LTS 24) with several docker containers and I use NGINX only as a internal proxy so that I can use https with letsencrypt internally , this in combination with Homeassistant. The first troubleshooting let me to HA, HA is running in host network mode. When i changed it to docker network it worked again. Or when I stopped nginx or homeassistant it started working again. Been troubleshooting very long to find out that this version was the problem from me. reverting to 2.13.7 fixed all the issues. (costed me a lot a digging before looking at the nginx container) **Nginx Proxy Manager Version**  2.14.0 **Operating System**  tested on Ubuntu 24 LTS and Debian 13

kerem added the

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2026-02-26 07:38:01 +03:00

kerem commented

2026-02-26 07:38:02 +03:00

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@jc21 commented on GitHub (Feb 25, 2026):

Anyone else having this issue?

I run this on a Rpi5 and a RHEL server with lots of containers on both systems. I don't run HA though.

@jc21 commented on GitHub (Feb 25, 2026): Anyone else having this issue? I run this on a Rpi5 and a RHEL server with lots of containers on both systems. I don't run HA though.

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Reference

starred/nginx-proxy-manager-NginxProxyManager#3173

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