If you are having problems while uploading photos to the Gallery of your property, it could be due to slow internet connection. It might happen that with large packets, the timeout limit of upload expires.
Solution: Check your connection and if possible try to upload the photos at another time or using a different internet connection.
N.B. It is very important to use appropriate image size and file size: Suggested image size is 1050 x 662 pixels or anything under 1200 x 900. Keep the file size down where the recommended file size is around 400kb.
Read more in ‘Adding images to the Gallery of a property‘ Section.