Raspberry Pi Zero Wifi issue

I was playing around and writing another Tutorial on setting up 3 Raspi Zero Wifi for Docker Swarm when I came around some connectivity problems with the wifi connection. I was barely able to configure and/or use the ssh connection of the Zeros.

First Try: reconnect

I found some other forum posts about people having the same issue saying: Reconnect your Wifi with:

sudo raspi-config 
1 - System Options you can configure 
S1 - Wireless LAN

Sounds like this is a common issue after setting up your Raspi with the Raspi Imager tool where i pre-configured my Wifi for a headless setup.

But this only worked for a couple of reboots.

Second Try: fixed IP

It could be that my local network (unifi) is causing this problem. I did not set the static IP on the Pi itself but in the unifi controller dashboard which should be equal to a fixed IP-address.

But I was wrong, the Raspberry Pi obviously has a DHCP problem by getting it's fixed IP-address. Which should be something like 192.168.10.x/24.

I was having the same problems in the past with other devices so I guess it's either a configuration thing or the unifi controller/router sucks.

Well, to prevent that from happening again and not trusting the dhcp connection, I just edited the dhcpd.conf on the Raspi. I repeated that on all my devices and since they should have fixed IPs anyway, it doesn't even bother me.

sudo nano /etc/dhcpcd.conf
interface wlan0
static routers=192.168.10.1
static domain_name_servers=192.168.10.1
static ip_address=192.168.10.255/24 # Pi Zero selected address

This fixed the connectivity for me, hope it helps!