![]() Sometimes if i try a few times and it doesnt work, I'll come back to it like 30 minutes later without rebooting the Pi and then it will connect. Its just so strange that it will connect fine, then not connect at all. Super frustrating having to reboot to reconnect to the Pi after its been working for awhile during the day. Not sure if theres anything else I can do. Once the connection has been established, you wont need these peripherals any more. VNC is a graphical desktop sharing system that allows you to remotely control the desktop interface of your Raspberry Pi from another computer or mobile device.To setup the remote connection, your Raspberry Pi has to be connected to a monitor, keyboard and mouse. If necessary, take a quick look at our tutorial How to update your Raspberry Pi to the latest version. However, when I try to use the Pi itself with a mouse and keyboard and a monitor, I can still browse the internet just fine. 1.For this tutorial, you need to have your Raspberry Pi running on the latest version of Raspberry Pi OS. When this error is happening, and I try to ping the Pi, I get a few different errors, either "Destination unreachable" or the packets get sent but aren't received. Turning Wifi Power Management off on the Pi Setting "disconnect after idle for x amount of time" on the Pi VNC Server settings I have researched this issue and tried to fix it including: I then can't reconnect to my Pi unless it randomly works out of nowhere or I reboot the Pi. ![]() Then either after a while of being connected, or awhile after I've closed the connection on the laptop and try to reconnect to the Pi after a certain amount of time, I start getting errors, usually the "Timed out waiting for a response from the computer" error on the laptop. My laptop running VNC Viewer connects fine to my Raspberry Pi running the VNC Server at first (both connected to the same Wifi network). Now the next time you start VNC, it will establish new credentials.Kind of a weird issue (I think) regarding VNC Server/Viewer and my Raspberry Pi 4. Sudo systemctl start vncserver-x11-serviced Sudo systemctl stop vncserver-x11-serviced While there are lots of different ways that people propose to remove the VNC credentials, here is the easiest and most reliable way we have found. How to Remove the VNC Credentials from a Cloned SD Card We sell a cloned SDCard with the latest Raspberry Pi OS and all of the major SwitchDoc Labs software preinstalled for convenience, so we run into this occasionally. We use the excellent remote viewer from – see picture below. So, especially if you are using one of the remote servers (so you don’t have to poke a hole in your firewall or router) that VNC vendors provide, then you have issues with the remote system being able to discriminate between two systems with the same remote. These credentials are how the VNC server determines that you are who you say you are. When you clone an SC Card with VNC in the OS, you also clone the VNC credentials. What the Problem with Cloned SD Cards and VNC? Popular uses for this technology include remote technical support and accessing files on one’s work computer from one’s home computer, or vice versa. Multiple clients may connect to a VNC server at the same time. VNC is platform-independent – there are clients and servers for many GUI-based operating systems and for Java. It transmits the keyboard and mouse events from one computer to another, relaying the graphical-screen updates back in the other direction, over a network. Virtual Network Computing (VNC) uses the Remote Frame Buffer protocol (RFB) to remotely control another computer. We also use this to maintain and tweak Project Curacao3. We are logged in from SwitchDoc Labs about 1500 miles away. ![]() For example, this is a VNC window on a SkyWeather system located in Palm Springs. If you need the Graphical User Interface (GUI), then you can use VNC on another computer and then you have your desktop right there! We use it for local computing using the GUI, but most often for working on computers often far away. VNC is a great tool for the Raspberry Pi. Tutorial: Using VNC on a Cloned SDCard for the Raspberry Pi
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