I've just came across this thread and hope someone can help. This is probably gonna be difficult to explain...
Got the sky router upstairs, and with a couple of home plugs I have the signal pop out in my living room. The home plug feeds into the back of a cheapo generic WiFi router that I only use as it has 4 ports on the back, meaning when my home plug is plugged into it, my Xbox, sky box, Zgemma S2, Raspberry Pi2 etc all have an internet feed.
Everything works, and, I can get my IP address for all the devices, but I cannot ping or ftp the Pi or the Zgemma S2. No matter what I do they are "invisible", meaning I can't use any of the Android apps for the Zgemma, or transfer files over to it.
Any ideas / suggestions?
Many thanks.