I just had trouble uploading an image file to my web space (space supplied by my ISP).
I use Namo WebEditor for creating web pages. The program comes with its own file uploader, which has always worked OK. The first time I tried to upload this particular .gif image file, the uploader said it was unable to do it. Since the Comodo firewall is the latest installation on my computer, I put it down to this. I deleted the entries for WebEditor from the Application Monitor in the firewall and let it re-ask permissions.
The file uploaded OK after that but when I went to view it, Firefox said the file had errors and IE said it couldn’t display the page. The local .gif file on the Desktop displayed OK in the browser. Still suspecting the firewall, I took a chance and turned it off for the short space of time it took to upload the file. I then hastily unplugged the modem until the firewall was up and running again. The file was then viewable on the Internet.
It does appear that something in the firewall stopped the file from uploading properly. Perhaps only a setting but I’m not too familiar with altering default permissions in firewalls (been using ZA Pro), could someone suggest what I should try?