I too am able to get pings through during the drops – yes they can be slow but they are getting through which means I can’t trust the info the graph…if there were really no signal, the pings would not get through.
So this feels more like a software issue and it might go something like this:
Netspot asks the Radio for a info about a wireless channel
Radio replies with SSID, signal strength, etc
Meanwhile Radio is also busy maintaining a network connection
(during my test it would be a series of pings)
Netspot keeps asking for the same info
Radio gets annoyed: “Can’t you see I’m busy here!” and ignores Netspot
Netspot reports signal strength of zero and graphs it even though the actual answer should be “null” or “info not available”
I’m hoping someone from Netspot will comment on this thread
