> ## Documentation Index > Fetch the complete documentation index at: https://docs.gcore.com/llms.txt > Use this file to discover all available pages before exploring further. # Fix the camera or microphone if they do not work > Fix crossed-out camera or microphone icons in Gcore Real-Time Video by checking browser and system permissions, extensions, and network. Crossed-out camera or microphone icons in a Real-Time Video call mean the site or the operating system blocked the devices, or a stored permission or extension is denying access. The origin that must be allowed is `meet.gcore.com`. Allow the site in the browser first. If the icons stay crossed out, reset that site permission, test extensions, allow the browser in the OS, then confirm that the browser version is supported. If the devices work in the browser but other participants do not receive media, the network is blocking WebRTC. An enabled icon with silence in the room is a different problem — the OS is sending the wrong input device, and that check is in the Windows tab. ## Check browser permissions The address bar on the Real-Time Video page shows whether `meet.gcore.com` may use the camera and microphone. Open the tab for the browser in use. **Chrome** The padlock in the Chrome address bar shows site permissions for `meet.gcore.com`. Turn **Camera** and **Microphone** on if they are off, then reload the page. ![Chrome site permissions for meet.gcore.com with Camera and Microphone toggles](https://mintcdn.com/gcore/mB9xUQPpVbdf6kcA/images/docs/streaming/faq/real-time-video-issues/fix-the-camera-or-microphone-if-they-do-not-work/13080497186449.png?fit=max\&auto=format\&n=mB9xUQPpVbdf6kcA\&q=85\&s=05c674aa06fe16b1cc1b60d1a760716c) If the padlock is missing or the toggles stay off, open Chrome **Settings**, select **Privacy and security**, then open **Site settings**. ![Chrome Settings showing Privacy and security and Site settings](https://mintcdn.com/gcore/mB9xUQPpVbdf6kcA/images/docs/streaming/faq/real-time-video-issues/fix-the-camera-or-microphone-if-they-do-not-work/13080561876625.png?fit=max\&auto=format\&n=mB9xUQPpVbdf6kcA\&q=85\&s=d450e4da71c09625b7f05f7d36e089cc) Open **Camera** and **Microphone**. Confirm that sites can ask to use the devices and that `meet.gcore.com` is not blocked. ![Chrome Site settings list with Camera and Microphone](https://mintcdn.com/gcore/mB9xUQPpVbdf6kcA/images/docs/streaming/faq/real-time-video-issues/fix-the-camera-or-microphone-if-they-do-not-work/13080685472401.png?fit=max\&auto=format\&n=mB9xUQPpVbdf6kcA\&q=85\&s=b83832b369630f3ee26040aa8702c1e0) On Android Chrome, tap the lock icon on the Real-Time Video page and allow **Camera** and **Microphone**. **Edge** Edge is Chromium-based, so the same two levels apply: the address-bar permission and the site-wide Camera and Microphone lists. The padlock in the Edge address bar shows site permissions for `meet.gcore.com`. Turn **Camera** and **Microphone** on if they are off, then reload the page. If the toggles stay off, open Edge **Settings**, select **Cookies and site permissions**, then open **Camera** and **Microphone**. Confirm that sites can ask to use the devices and that `meet.gcore.com` is not blocked. **Firefox** The camera and microphone icons on the left of the Firefox address bar show the current permission for `meet.gcore.com`. If **Use the camera** or **Use the microphone** is temporarily blocked, click **×** on that row and reload the page. ![Firefox address bar permissions with camera and microphone blocked temporarily](https://mintcdn.com/gcore/mB9xUQPpVbdf6kcA/images/docs/streaming/faq/real-time-video-issues/fix-the-camera-or-microphone-if-they-do-not-work/13080971968273.png?fit=max\&auto=format\&n=mB9xUQPpVbdf6kcA\&q=85\&s=bec80c4814fc8a60a274edc86510f54d) If the icons return to blocked after reload, open Firefox **Settings**, select **Privacy & Security**, and in **Permissions** open **Camera** and **Microphone**. Confirm that `meet.gcore.com` is not on the block list. ![Firefox Privacy and Security permissions with Camera and Microphone](https://mintcdn.com/gcore/mB9xUQPpVbdf6kcA/images/docs/streaming/faq/real-time-video-issues/fix-the-camera-or-microphone-if-they-do-not-work/13081090317969.png?fit=max\&auto=format\&n=mB9xUQPpVbdf6kcA\&q=85\&s=3cbf7c385801f002c1db565c0385bc63) **Opera** The padlock in the Opera address bar shows site permissions for `meet.gcore.com`. If **Camera** or **Microphone** is off, turn the toggles on and reload the page. ![Opera site permissions with Camera and Microphone toggles off](https://mintcdn.com/gcore/mB9xUQPpVbdf6kcA/images/docs/streaming/faq/real-time-video-issues/fix-the-camera-or-microphone-if-they-do-not-work/13081119381265.png?fit=max\&auto=format\&n=mB9xUQPpVbdf6kcA\&q=85\&s=7c3d6d403d7057384401f71deede048a) If the toggles stay off, open Opera **Settings**, select **Privacy & security**, then open **Site settings**. ![Opera Settings showing Privacy and security and Site settings](https://mintcdn.com/gcore/mB9xUQPpVbdf6kcA/images/docs/streaming/faq/real-time-video-issues/fix-the-camera-or-microphone-if-they-do-not-work/13081222474513.png?fit=max\&auto=format\&n=mB9xUQPpVbdf6kcA\&q=85\&s=4a39418acaeaa582ab2afaa7eb1dd762) In **Permissions**, open **Camera** and **Microphone**. Confirm that `meet.gcore.com` is not on the block list. ![Opera Site settings list with Camera and Microphone](https://mintcdn.com/gcore/mB9xUQPpVbdf6kcA/images/docs/streaming/faq/real-time-video-issues/fix-the-camera-or-microphone-if-they-do-not-work/13080991315601.png?fit=max\&auto=format\&n=mB9xUQPpVbdf6kcA\&q=85\&s=a562cf82f456ddaae24dafd0f1dd08c9) **Safari** Safari asks for microphone and camera access when the Real-Time Video page loads. Reload the page and click **Allow** in the prompt. ![Safari prompt to allow meet.gcore.com to use the microphone](https://mintcdn.com/gcore/mB9xUQPpVbdf6kcA/images/docs/streaming/faq/real-time-video-issues/fix-the-camera-or-microphone-if-they-do-not-work/13081307372817.png?fit=max\&auto=format\&n=mB9xUQPpVbdf6kcA\&q=85\&s=11f4c757526fd33ba9c75e49a445d5b2) If the prompt does not appear or the page stays blocked, open Safari **Settings**, select **Camera** or **Microphone**, and confirm that `meet.gcore.com` is not blocked. On iOS, reload the page and tap **Allow** when Safari asks for the microphone or camera. ## Reset site permissions If the address-bar toggles were changed but the icons stay crossed out, the browser is still applying a stored permission for `meet.gcore.com`. Reset that origin only, then reload the page. **Chrome** In the padlock menu, click **Reset permissions**, then reload the page. Chrome asks for camera and microphone access again. **Edge** In the padlock menu, click **Reset permissions**, then reload the page. Edge asks for camera and microphone access again. **Firefox** In **Settings** → **Privacy & Security** → **Permissions**, open **Camera** and **Microphone**, remove `meet.gcore.com` from the lists, then reload the page. **Opera** In the padlock menu, click **Reset permissions**, then reload the page. Opera asks for camera and microphone access again. **Safari** In Safari **Settings**, open **Camera** and **Microphone**, remove or unblock `meet.gcore.com`, then reload the page and click **Allow**. ## Check extensions A third-party extension can deny camera or microphone access on `meet.gcore.com`. Open the Real-Time Video page in a private or incognito window, where most extensions are off. A private window also uses a separate permission store, so a working call there is not proof that an extension is the cause. If the devices work in the private window, return to the regular window, disable extensions that manage camera, microphone, ads, or privacy one at a time, and reload the call. The extension that restores the devices is the one to leave off during Real-Time Video sessions. ## Check operating-system permissions The operating system can block the browser even when the site permission is on. Open the tab for the OS in use. **Windows** Windows 11 can deny camera or microphone access to the browser. Open **Settings** → **Privacy & security**, then select **Camera** or **Microphone**. Turn camera access or **Microphone access** on, then allow the browser in the app list. ![Windows 11 Microphone access and per-app microphone permissions](https://mintcdn.com/gcore/mB9xUQPpVbdf6kcA/images/docs/streaming/faq/real-time-video-issues/fix-the-camera-or-microphone-if-they-do-not-work/13081924169617.png?fit=max\&auto=format\&n=mB9xUQPpVbdf6kcA\&q=85\&s=675cb75a1cfe9c7821c8bafe7b9ca0f1) If the icon is already enabled but the room hears nothing, the default input is wrong. Open **Settings** → **System** → **Sound**. Under **Input**, select the device that should capture the call. ![Windows 11 Sound settings with Input devices](https://mintcdn.com/gcore/mB9xUQPpVbdf6kcA/images/docs/streaming/faq/real-time-video-issues/fix-the-camera-or-microphone-if-they-do-not-work/13081899519505.png?fit=max\&auto=format\&n=mB9xUQPpVbdf6kcA\&q=85\&s=f2d205129bfcd41a08eb57ccec5bcfc3) **macOS** On current macOS, camera and microphone access is under **System Settings** → **Privacy & Security**. On earlier macOS, the same pane is **System Preferences** → **Security & Privacy**. 1. Open **System Settings** (or **System Preferences**) and select **Privacy & Security** (or **Security & Privacy**). ![macOS System Preferences with Security and Privacy selected](https://mintcdn.com/gcore/mB9xUQPpVbdf6kcA/images/docs/streaming/faq/real-time-video-issues/fix-the-camera-or-microphone-if-they-do-not-work/13081820659857.png?fit=max\&auto=format\&n=mB9xUQPpVbdf6kcA\&q=85\&s=0d850cb827b57f4e1c7cbb581dbe8ead) 2. Select **Camera** or **Microphone**, then select the checkbox next to the browser. ![macOS Privacy pane with Camera, Microphone, and browser checkboxes](https://mintcdn.com/gcore/mB9xUQPpVbdf6kcA/images/docs/streaming/faq/real-time-video-issues/fix-the-camera-or-microphone-if-they-do-not-work/13081892456593.png?fit=max\&auto=format\&n=mB9xUQPpVbdf6kcA\&q=85\&s=e3499dbf221c96886b117cbffe132eac) Restart the browser after changing these settings — the new permission applies only after a reload. **Android** Android can deny camera or microphone access to Chrome even when the site permission is on. Open **Settings** → **Apps** → **Chrome** → **Permissions**. Set **Camera** and **Microphone** to **Allow**, then return to the Real-Time Video page and reload it. **iOS** iOS can deny camera or microphone access to Safari even when the page prompt was accepted. Open **Settings** → **Privacy & Security**, then **Camera** and **Microphone**, and allow Safari. Site-level Safari controls are under **Settings** → **Safari** (or **Settings** → **Apps** → **Safari**). Camera and Microphone must not be set to **Deny**. Reload the Real-Time Video page. ## Confirm the browser version If permissions are correct and the icons are still crossed out, confirm that the browser meets the minimum supported version. Update from the vendor page in the same row if the installed version is lower. | OS | Browser | Minimum | Vendor page | | - | - | - | - | | Windows | Chrome | 70+ | [Chrome update](https://www.google.com/chrome/update) | | Windows | Edge | 79+ | [Edge version](https://support.microsoft.com/en-us/microsoft-edge/find-out-which-version-of-microsoft-edge-you-have-c726bee8-c42e-e472-e954-4cf5123497eb) | | Windows | Firefox | 70+ | [Firefox version](https://support.mozilla.org/en-US/kb/find-what-version-firefox-you-are-using) | | Windows | Opera | 60+ | [Opera update](https://help.opera.com/en/latest/crashes-and-issues/) | | macOS | Chrome | 70+ | [Chrome update](https://www.google.com/chrome/update) | | macOS | Safari | 12+ | [Safari update](https://support.apple.com/en-us/102665) | | macOS | Firefox | 70+ | [Firefox version](https://support.mozilla.org/en-US/kb/find-what-version-firefox-you-are-using) | | macOS | Opera | 60+ | [Opera update](https://help.opera.com/en/latest/crashes-and-issues/) | | Android | Chrome | 70+ | [Chrome Android](https://support.google.com/chrome/answer/95414?co=GENIE.Platform%3DAndroid) | | iOS | Safari | 13+ | [Safari update](https://support.apple.com/en-us/102665) | ## Check the network This step applies only after the camera and microphone are available in the browser — the local preview works, the icons are not crossed out, and the OS permission is on. Corporate networks and strict firewalls can still block WebRTC media, so other participants do not receive audio or video. Switching browsers does not bypass a network that drops those connections. Join the call from another network, or ask the network administrator to allow WebRTC traffic for `meet.gcore.com`.