--- title: WePanel FAQ description: "# WePanel FAQ > WePanel is the glass panel engine of the WeSim cockpit system. Check this page first for usage issues; for basic operations see the [WePanel User Manual](user-manual.en.md). --- ## Panel window is blank or black after mirroring…" url: "https://www.diycockpit.com/docs/wepanel-faq/" updated: "2026-09-22" category: WeSim --- # WePanel FAQ # WePanel FAQ > WePanel is the glass panel engine of the WeSim cockpit system. Check this page first for usage issues; for basic operations see the [WePanel User Manual](user-manual.en.md). --- ## Panel window is blank or black after mirroring - Make sure **DirectX 12** is enabled in MSFS 2020/2024 (DirectX 11 mode is not supported by WePanel capture) - The aircraft hasn't fully loaded: wait a few seconds after entering the cockpit - Popped out immediately after switching aircraft: WePanel is rebuilding panel data — wait for the message to disappear and retry - Still black after all the above: restart WeSim and try again; if the issue persists, check the status bar message and contact support ## "Panel data not ready, please retry later" Panels are still loading — this is normal. Wait a few seconds and retry; if it doesn't recover after a long time, re-enter the cockpit (or reload the aircraft) and retry. ## "No instrument panels detected (aircraft loading or not in cockpit)" WePanel found no panels to mirror. Common causes: - Not in the cockpit yet (still in the menu/loading screen) - The aircraft doesn't support panel capture (a few third-party aircraft don't expose their rendering interface) - The aircraft was changed mid-flight Enter the cockpit, wait for panels to appear, then retry. ## "Port conflict, please restart your PC" A system resource issue prevented the WePanel service from starting. Restart the PC to recover. ## After switching aircraft, old panels remain / images scrambled After switching aircraft, WePanel automatically invalidates old panel data and rebuilds. If you see leftover old images: - Close all panel windows (**Close All** button) and pop them out again - If it still misbehaves, restart WeSim ## Touch doesn't respond on the touchscreen - Make sure it's a mirrored window (not a regular pop-up window) - Make sure the mirrored window is on the touchscreen - A few special instruments (WASM-based third-party panels) do not accept external touch commands for security reasons — use a mouse or physical keys for those panels ## Do A320 MCDU / B737 CDU support touch? MCDU / CDU are standalone hardware devices using a dedicated **data-driven solution**: WeSim reads data from the simulator and sends it to the device over a USB cable, and the device firmware renders the display — no screen mirroring and no touchscreen needed. The physical keys on the device are the most authentic way to operate them. ## Can't view the LAN shared screen - Make sure the viewing device and the PC are on the same LAN - Make sure the address format is correct: `http://:18998` (e.g. `http://192.168.1.100:18998`; the port is fixed at 18998) - Find the PC's IP in Windows network settings; company/guest networks may isolate devices — try a home network or a phone hotspot ## Panel window can't be dragged / wrong position Panel windows support free dragging and resizing. If a window is mispositioned, edit the left/top/width/height values in the panel list on the Popout Panel page and pop it out again. ## Panel windows didn't close when quitting the simulator WeSim closes all panel windows automatically when it exits. If a window is left over, close it manually — it won't affect next use. ## More questions - When contacting support, please include: simulator version, aircraft model, and the status bar message - Logs: runtime logs in the WeSim installation directory (support will guide you through providing them when troubleshooting)