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As a golden rule, you need to configure your device only exactly once, as instructed to by your home institution. From then on, you can use all eduroam hotspots world-wide worldwide without reconfiguring anything.
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Important: all configuration instructions are specific for the issuing institution. It is not helpful to follow configuration instructions of other institutions; the settings are different from institution to institution and you will very likely misconfigure mis-configure your device if trying third-party configurations.
If you are not sure whether or not your institution provides eduroam at all, the National Roaming Operator for your country may be able to help with your enquiry. To find out more, follow the linked maps from http://www.eduroam.org/
eduroam apps
eduroam provides several apps that may be of use to you. See the apps here.
eduroam network characteristics
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