I was in a Wi-fi hotspot today. Complete signal, all bars lit and I kept going from wi-fi to E to wi-fi to E and got NOTHING accomplished.
I know you can shut off wi-fi, can you shut off that lousy Edge?
It shouldn't be hopping back and forth. The only reason that the WiFi should get interrupted, is if you are receiving text or calls during that time. Did you have any new text or voicemail at any point during trying to get connected?
I'm not sure how NetServices works, but if it's like iToggle, it doesn't really turn off the Edge. What it does instead is put an invalid IP address on the Edge interface which will cause your phone not to us the Edge connection. It doesn't really turn it off, just causes the phone not to use it.