By default, wpa_supplicant sets these parameters according to the 802.11 standard:
dot11RSNAConfigPMKLifetime = 43200 seconds (12 hours) dot11RSNAConfigPMKReauthThreshold = 70%
With these, the supplicant triggers a new EAP authentication every 8 hours and 24 minutes. If the network uses one-time secrets, the reauthentication fails and the supplicant disconnects. It doesn't seem desirable that the client starts a reauthentication so early; bump the lifetime to a week.
Currently, due to a bug, the new value is ignored by wpa_supplicant when set via D-Bus. This patch needs the fix at , not yet merged.