I upgraded python-kasa via pip today, and one KP115 plug will timeout before discovering the device type.

With version 0.6.2.1 it times out:
`# kasa --host kp115 sysinfo

No --type or --device-family and --encrypt-type defined, discovering..

Got error: TimeoutException('Timed out getting discovery response for kp115')
`

With version 0.5.1 it succeeds:
`# kasa --host kp115 sysinfo

No --type defined, discovering..

== System info ==

{'active_mode': 'none',

'alias': '****',

'dev_name': 'Smart Wi-Fi Plug Mini',

'deviceId': '****',

'err_code': 0,

'feature': 'TIM:ENE',

'hwId': '24ACB9D5D9DA9BF17639988287D65DE6',

'hw_ver': '1.0',

'icon_hash': '',

'latitude_i': -1879048193,

'led_off': 0,

'longitude_i': -1879048193,

'mac': '****',

'mic_type': 'IOT.SMARTPLUGSWITCH',

'model': 'KP115(EU)',

'next_action': {'type': -1},

'ntc_state': 0,

'obd_src': 'tplink',

'oemId': 'A9AD6FB31E10A787A48B31AB9A10BBEC',

'on_time': 2035,

'relay_state': 1,

'rssi': -68,

'status': 'new',

'sw_ver': '1.0.20 Build 221125 Rel.092759',

'updating': 0}
`

when specifying --type plug it works with version 0.6.2.1 as well.