I don't have 2 devices with same ip. I checked, just in case I rebooted the rasp several times and got different ip's each time.
net mask is 255.255.255.0 in all my devices, it's set by the DHCP server
Currently my iPhone sees my octopi, but my laptop doesn't... My cellphone can see my NAS, my laptop can see my NAS as well. Everyone is connected to internet (octopi included).
I stetted my router to give a specific address to the raspberry using his mac adress. It did work for a few minutes, then suddenly my laptop lost it (cannot ping anymore nor connect) I have tried changing the wifi access( I have 2 wifi points) nothing works. I'm currently in despair. Thanks
Edit: I just disabled wifi on my phone, enabled it and octopi is gone, can't contact it in any way nor connect to it from my cellphone anymore. If I reboot everything I'm pretty sure I'll be able to connect to it again, but as soon as my laptop of iPhone disconnects and reconnects to the wifi the octopi will be gone.
Edit2: I just rebooted the raspberry nothing else. After reboot my laptop sees it again. If I disconnect my laptop from wifi, then after reconnecting back it doesn't sees the Pi