Below are several troubleshooting methods to fix the Zoom unable to correct, error code 5003 issue.
Method 1. Restart the Zoom application
Error code 5003 is an issue that appears only on the Zoom desktop app. The very first thing you should do when you can’t connect to a Zoom meeting is completely exit out of the Zoom app, then restart it to try again.
Restart Zoom through the Task Manager
Open the Task Manager using one of the following ways:
Right-click on your taskbar and choose Task Manager from the context menu.
Otherwise, press the Ctrl + Alt + Esc keys on your keyboard.
If your Task Manager launched in the compact view, click on the More details option seen in the bottom left of the window.
Stay on the default Processes tab. Locate and right-click on the Zoom app, then select the End Task option from the context menu.
Launch the Zoom application again, and see if you can successfully connect to your meeting.
Method 2. Check the status of Zoom’s servers
check the status of Zoom’s servers
There are times when the Zoom servers are down due to increased traffic or technical difficulties. During times like these, you’re more likely to experience connectivity issues, and may not be able to attend your meetings.
To check the status of the Zoom servers, navigate to the status page in your web browser, and investigate the current situation of each Zoom service. If you see any issues displayed here, it’s best to wait until the servers are back to an operational state, then try connecting to your meeting again.
Method 3. Restart your device
In some cases, simply restarting your computer is able to solve Zoom’s 5003 error code. Allowing your device to refresh itself may solve some network issues, leading to a suitable connection to Zoom’s servers.
Restart your device
Click on the Start menu in your taskbar. This is displayed by a button with the Windows logo on it.
Windows start Menu
Click on the Power button.
Windows power button
Choose Restart from the context menu. Alternatively, you can choose the Shutdown option and manually power on your computer after it is powered off.
After your computer has restarted, check if you’re able to connect to your Zoom meeting without the 5003 error pops up.
Method 4. Temporarily disable your antivirus software
Antivirus applications are known to cause issues on computers by interfering with your internet connection or blocking apps and services from running properly. You can test if the antivirus you’re using at the moment is causing the Zoom error code 5003 by temporarily disabling it.
Note that this method is not recommended as it is unsafe to use your computer without protection. Only proceed if you’re aware of the possible risks and have a backup of your system to revert any damage that may happen.
Right-click on an empty space in your taskbar and choose Task Manager.
If the Task Manager launched in compact mode, make sure to expand details by clicking on the “Mode details” button.
Open Task Manager
Switch to the Start-up tab using the header menu located at the top of the window.
Find your antivirus application from the list and select it by clicking on it once.
Zoom > Task Manager
Click on the Disable button now visible in the bottom-right of the window. This will disable the application from launching when you start your device.
Restart your computer and try to connect to your Zoom meeting.