I cannot upload a file, why?

Please check that :

1. Your file name doesn't have special characters like "?" and "#"
2. Your file is not bigger that 100 MB. If that's the case, try to upload your file via Webdav
3. You have not reached your 1 GB quota. If that's the case, you can ask for a quota increase at my@epfl.ch (please indicate your wiki URL, e.g. https://wiki.epfl.ch/mywiki)