Google Talk services are draining battery, that seems to be known problem. But, this issue for this topic is different one.
I checked Better Battery Stats, Better WiFi. Seems that wake related to wifi is the main issue many times.
The problem is - when I have WiFi hotspot, good signal, got connection, but do not get network access (needs to be authenticated), all of that in background (no alert, no visible action on screen). So, on WiFi screen I can see connected, but actually I did not get network access, so all services which need network access (including Google services) are simultaneously trying to go to network, to get updates or any other data and - that is draining battery heavily - access to network is not existing.
Anybody experienced this? How to fix this issue?