Today I decided to pull out my old Hero3, after updating it to the latest firmware I was surprised to find that the GoPro app would not connect successfully. What I found was that for whatever reason, the DHCP request from my mobile device (OPO in my case) was not received and or accepted by the camera, and no IP address was found. After some probing around I discovered that these cameras default to the 10.5.5/24 network.

So the solution was simple, in my wireless settings for the AP on the mobile device I manually configured the IP address to live on the 10.5.5/24 network by assigning it the IP address 10.5.5.2. The gateway and DNS are also assigned to 10.5.5.1 however I don’t believe this makes any difference on these devices.