func session(_ session: MCSession,peer peerID: MCPeerID,didChange state: MCSessionState) {}

在尝试连接时工作但几秒钟后,它再次使用MCSessionState == .notConnected调用.

尝试使用WiFi,BT和两者之间的所有组合……

刚刚添加：

<key>NSAppTransportSecurity</key>
<dict>
    <key>NSAllowsArbitraryLoads</key>
    <true/>
    <key>NSTemporaryExceptionRequiresForwardSecrecy</key>
    <false/>
</dict>

没有多少帮助…仍然进入控制台(仅在iOS 10.2设备上,但是……)：

2017-02-06 15:17:37.858063 Advertiser[1149:316236] [ViceroyTrace] [ICE][ERROR] ICEStopConnectivityCheck() found no ICE check with call id (1724768204)
2017-02-06 15:17:39.727633 Advertiser[1149:316295] [ViceroyTrace] [ICE][ERROR]  Send BINDING_REQUEST Failed(C01A0041).
2017-02-06 15:17:39.808822 Advertiser[1149:316295] [ViceroyTrace] [ICE][ERROR]  Send BINDING_REQUEST Failed(C01A0041).
2017-02-06 15:17:39.948454 Advertiser[1149:316295] [ViceroyTrace] [ICE][ERROR]  Send BINDING_REQUEST Failed(C01A0041).
2017-02-06 15:17:40.179569 Advertiser[1149:316295] [ViceroyTrace] [ICE][ERROR]  Send BINDING_REQUEST Failed(C01A0041).
2017-02-06 15:17:40.591829 Advertiser[1149:316295] [ViceroyTrace] [ICE][ERROR]  Send BINDING_REQUEST Failed(C01A0041).
2017-02-06 15:17:41.297454 Advertiser[1149:316295] [ViceroyTrace] [ICE][ERROR]  Send BINDING_REQUEST Failed(C01A0041).
2017-02-06 15:17:42.547840 Advertiser[1149:316295] [ViceroyTrace] [ICE][ERROR]  Send BINDING_REQUEST Failed(C01A0041).
2017-02-06 15:17:44.077537 Advertiser[1149:316295] [ViceroyTrace] [ICE][ERROR]  Send BINDING_REQUEST Failed(C01A0041).
2017-02-06 15:17:45.601568 Advertiser[1149:316295] [ViceroyTrace] [ICE][ERROR]  Send BINDING_REQUEST Failed(C01A0041).
2017-02-06 15:17:47.125030 Advertiser[1149:316295] [ViceroyTrace] [ICE][ERROR]  Send BINDING_REQUEST Failed(C01A0041).
2017-02-06 15:17:48.110301 Advertiser[1149:316267] [GCKSession] Not in connected state,so giving up for participant [66CDDFCC] on channel [0].
2017-02-06 15:17:48.111331 Advertiser[1149:316267] [GCKSession] Not in connected state,so giving up for participant [66CDDFCC] on channel [1].
2017-02-06 15:17:48.111526 Advertiser[1149:316267] [ViceroyTrace] [ICE][ERROR] ICEStopConnectivityCheck() found no ICE check with call id (1724768204)
2017-02-06 15:17:48.111705 Advertiser[1149:316267] [GCKSession] Not in connected state,so giving up for participant [66CDDFCC] on channel [2].
2017-02-06 15:17:48.111873 Advertiser[1149:316267] [ViceroyTrace] [ICE][ERROR] ICEStopConnectivityCheck() found no ICE check with call id (1724768204)
2017-02-06 15:17:48.112042 Advertiser[1149:316267] [GCKSession] Not in connected state,so giving up for participant [66CDDFCC] on channel [3].
2017-02-06 15:17:48.113031 Advertiser[1149:316267] [ViceroyTrace] [ICE][ERROR] ICEStopConnectivityCheck() found no ICE check with call id (1724768204)
2017-02-06 15:17:48.121016 Advertiser[1149:316267] [GCKSession] Not in connected state,so giving up for participant [66CDDFCC] on channel [4].
2017-02-06 15:17:48.121321 Advertiser[1149:316267] [ViceroyTrace] [ICE][ERROR] ICEStopConnectivityCheck() found no ICE check with call id (1724768204)
2017-02-06 15:17:48.121506 Advertiser[1149:316267] [GCKSession] Not in connected state,so giving up for participant [66CDDFCC] on channel [5].
2017-02-06 15:17:48.121683 Advertiser[1149:316267] [ViceroyTrace] [ICE][ERROR] ICEStopConnectivityCheck() found no ICE check with call id (1724768204)

(广告商是应用程序的名称)
使用iPhone 6S和10.2& iPhone 6配9.2.
使用来自Xcode 8.2.1(Swift3)的macOS Sierra v10.12.2在Macbook Pro上运行代码.