![]() Note that some IP scanners will remember devices from a previous scan and show them even if they are not presently on the network (in this case, usually dimmed out). Look through the result for a device named "octopi" (or whatever name you have given your OctoPi setup). Log on to your WiFi network with the device on which you will be running the network scanner app, launch the app and tell it to scan the network. You can also find the Fing app for Android and iOS devices.) Fing is also a good free option (runs on Windows, macOS, Linux - and has a Pi version. I use the free Angry IP Scanner (works on Windows, macOS, and Linux - I have not tried running the Linux version on a Pi). There are a number of free apps you can download. If you see the name in the list as an active device, your Pi is connected and is using the IP address indicated. Look for a device named "octopi" in that list (if you have renamed your octopi hostname to something else, look for that name). Look for something that says DHCP, or LAN, or WLAN and see if it brings up a list of connected devices. You'll most likely need a username and password to log on to your router (get those from your ISP, if they will give that information out). ![]() The Router's IP address varies, but two commonly used setups are 192.168.1.1 and 192.168.0.1 (or you can find it in your computer's network information). In short, you access the page by entering the router's IP address in your web browser's address bar. The details of doing this are beyond what I'll go into here, since each router brand/model is different. If you have access to your router's set up page, there is usually an option to show all connected devices. Finding Your Pi's IP address Option A: Access your router's set-up/control page On Linux and Android devices, you will need to access by the IP address. On Windows you should be able to see your OctoPrint instance pop up in the Explorer under "Network > Other Devices". local in your web browser or when accessing via SSH (OctoPi's default is octopi.local). You can also use an OUI lookup tool to help identify the manufacturer of each device.You should be able to access your PI/OctoPrint from a device running macOS or iOS (iPhones, iPads) without the IP address by using. This question provides more information on how to do that. Once you have the MAC addresses of the two devices, you should be able to tie them to specific switch ports. There should be one IP address that flips between multiple MAC addresses again, those two MAC addresses represent the devices you are interested in. If the IP address in question is within one of your DHCP pools, it's also worth checking your DHCP server's logs for the MAC address it's attempting to assign that IP address to.įailing that, I would recommend logging on to the default router of the subnet that this problem is occurring on, and monitoring the ARP table. What device logged the IP address conflict? Was it a server, router, etc.? Some platforms (Solaris and BSD) will log the MAC address of the offending host along with the error message. I would suggest that you attempt to find the MAC addresses of the two machines that are clashing. 13Ī list of IP addresses on the LAN will be of limited help, as the issue is there are two machines trying to use the same IP address. If there's a unix box on the network, you could try arp-scan:ĪRP scanner | Linux man page $ arp-scan -interface=eth0 192.168.0.0/24
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