I bought this camera and tried it for a nearly a month before returning it back to amazon. The problem (also reported by others) is that the internal software for the camera keeps crashing. At that point the only way to reset it is to physically reboot it. This makes this absolutely unusable for remote monitoring purposes.
I applied all the patches / updates that were available on Foscam website as well as getting a new router (tried Netgear & WD). Also tried keeping at different locations in the house to rule out Wifi signal issues. The device was assigned static as well as dynamic IP and with different ports combinations.
The other issue I had was the poor support for OS X and non IE browsers. The software that is shipped on the CD with the product is not compatible with newer version (doesn't work on Mavericks and Snow Leopard). A third party app is required to configure it on a Mac.
I have two other IP cams (D-link and vuezone) and both work very well. I would recommend going with D-link which is priced about the same.