My Nexus 7(android 6.0.1) constanly drops wi-fi connection(connects and disconnects immediately), presumably due to bad connection, while Nexus 5x lying next to it is staying connected just fine.
I got logs using adb and i think the cuprit is
04-30 11:15:38.013 594 7142 D NetworkMonitor/NetworkAgentInfo [WIFI () - 133]: Forcing reevaluation for UID 10022
04-30 11:15:38.018 594 7142 D NetworkMonitor/NetworkAgentInfo [WIFI () - 133]: Probably not a portal: exception java.net.UnknownHostException: Unable to resolve host "connectivitycheck.gstatic.com": No address associated with hostname
04-30 11:15:38.019 594 663 D ConnectivityService: NetworkAgentInfo [WIFI () - 133] validation failed
04-30 11:15:38.019 594 663 D ConnectivityService: notifyType CAP_CHANGED for NetworkAgentInfo [WIFI () - 133]
04-30 11:15:38.027 594 663 D ConnectivityService: sendStickyBroadcast: action=android.net.conn.INET_CONDITION_ACTION
04-30 11:15:38.079 594 663 D ConnectivityService: NetworkAgentInfo [WIFI () - 133] EVENT_NETWORK_INFO_CHANGED, going from CONNECTED to DISCONNECTED
I've checked from PC connectivitycheck.gstatic.com can be reached from my network, both dnslookup and ping work on it
There is no option in wi-fi setting to disable avoid bad wi-fi connection.
What can be done?
EDIT: Rebooting router and rebooting device did not help. I've also checked the router logs and settings, the device is not blacklisted, and router logs look just fine consistant with the behaviour - device connected, some negotiations, device disconnected.