I'm having a problem with some Android tablets being unable to synchronise the time when connected to our wireless network. This is in a school and fairly heavily locked down, so it's probable that they are being blocked from accessing something that they need to in order to synchronise the time.
These are Wi-Fi only devices, so they can't set the time from a GSM provider or anything, meaning they must be using something else, presumably NTP. If it's NTP, how can I view/change the time server used?
The devices are Android 4.0.1. I'm not sure what make/model they are but will try and find out.