I'm having the same problem, i.e. after El Capitan install, FaceTime is not working. Was ok before and it does work between my iPad and remote iPad instead of my Mac and emote iPad or Mac running Yosemite. Doesn't work in either direction. Here is my console log for last FaceTime attempt
2015-10-04 8:40:02.703 PM FaceTime[2371]: Connection error while checking Apple Internalness. Error: Error Domain=NSCocoaErrorDomain Code=4099 "The connection to service named com.apple.CrashReporterSupportHelper was invalidated." UserInfo={NSDebugDescription=The connection to service named com.apple.CrashReporterSupportHelper was invalidated.}
2015-10-04 8:40:03.127 PM FaceTime[2371]: [Warning] Could not pause video for callID: 0
2015-10-04 8:40:03.127 PM FaceTime[2371]: [Warning] Error pausing video: Error Domain=GKVoiceChatServiceErrorDomain Code=32004 "No CallID" UserInfo={NSLocalizedFailureReason=Called without a callID we know about, NSErrorUserInfoReturnCode=0, NSErrorUserInfoDetailedError=104, NSLocalizedDescription=No CallID}
2015-10-04 8:40:03.746 PM sandboxd[133]: ([2371]) FaceTime(2371) deny mach-lookup com.apple.CrashReporterSupportHelper
2015-10-04 8:40:11.880 PM FaceTime[2371]: [Warning] Dropping relay update, no call info found
2015-10-04 8:40:12.240 PM FaceTime[2371]: [Warning] Dropping relay initiate, no call info found
2015-10-04 8:40:14.898 PM FaceTime[2371]: [Warning] IMAVInterfaceNetworkCheckResult unknown/unhandled result: -1
2015-10-04 8:40:17.466 PM rtcreportingd[1843]: -[AWDStats sendConnectivityTimingToAWD]: MetricType_Facetime_FaceTimeConnectivityTiming {
FaceTimeConnectivityTimingAudioStarted = "117.1875";
FaceTimeConnectivityTimingFirstRemoteFrame = 0;
FaceTimeConnectivityTimingGetConnectionData = "101.5625";
FaceTimeConnectivityTimingGetConnectionDataRelay = "66.40625";
FaceTimeConnectivityTimingICECheck = "148.4375";
FaceTimeConnectivityTimingSIPComplete = "93.75";
FaceTimeConnectivityTimingSKECompleted = 0;
FaceTimeConnectivityTimingVideoStarted = "42.96875";
}
2015-10-04 8:40:17.466 PM rtcreportingd[1843]: -[AWDStats sendRTStatsToAWD]: MetricType_Facetime_RTStats {
RTStatsAvgRate = 0;
RTStatsDownlinkEstimateAvg = 0;
RTStatsPIPDuration = 0;
RTStatsPIPPercent = 0;
RTStatsRemoteInterfaceName = WiFi;
RTStatsRxFrameRateAvg = 0;
RTStatsRxFrameRateMax = 0;
RTStatsRxFrameRateMin = 30;
RTStatsRxHeight = 0;
RTStatsRxWidth = 0;
RTStatsTargetJitterBufferSize = 0;
RTStatsTxFrameRateAvg = 0;
RTStatsTxFrameRateMax = 0;
RTStatsTxFrameRateMin = 30;
RTStatsTxHeight = 368;
RTStatsTxWidth = 480;
RTStatsUplinkEstimateAvg = 0;
RTStatsinterfaceName = WiFi;
RTStatswAvgInterArrivalTime = (
0
);
RTStatswAvgJitterBufferSize = 0;
RTStatswAvgLossRate = 0;
}
2015-10-04 8:40:17.467 PM rtcreportingd[1843]: -[AWDStats sendHistogramsToAWD]: MetricType_Facetime_PLRHistogram {
PLRHistogram = (
0,
0,
0,
0,
0,
0,
0,
0
);
}
2015-10-04 8:40:17.467 PM rtcreportingd[1843]: -[AWDStats sendHistogramsToAWD]: MetricType_Facetime_RTTHistogram {
RTTHistogram = (
0,
0,
0,
0,
0,
0,
0,
0,
0,
0
);
}
2015-10-04 8:40:17.467 PM rtcreportingd[1843]: -[AWDStats sendHistogramsToAWD]: MetricType_Facetime_TargetTxRateHistogram {
TargetTxRateHistogram = (
0,
0,
0,
0,
0,
0,
0,
0
);
}
2015-10-04 8:40:17.467 PM rtcreportingd[1843]: -[AWDStats sendHistogramsToAWD]: MetricType_Facetime_AudioWindowLossHistogram {
AudioWindowLossHistogram = (
0,
0,
0,
0,
0,
0,
0,
0
);
}
2015-10-04 8:40:17.467 PM rtcreportingd[1843]: -[AWDStats sendHistogramsToAWD]: MetricType_Facetime_MaxJitterHistogram {
MaxJitterHistogram = (
0,
0,
0,
0,
0,
0,
0,
0
);
}
2015-10-04 8:40:17.467 PM rtcreportingd[1843]: -[AWDStats sendVideoQualityStatsToAWD]: MetricType_Facetime_VideoQualityStats {
VideoQualityStatsLocalVideoDegradeTime = 0;
VideoQualityStatsRemoteVideoDegradeTime = 0;
}
2015-10-04 8:40:17.467 PM rtcreportingd[1843]: -[AWDStats sendBasebandStatsToAWD]: MetricType_Facetime_BasebandStats {
BasebandAudioFlush = 0;
BasebandAudioPause = 0;
BasebandAverageBitrateHistogram = (
0,
0,
0,
0,
0,
0,
0,
0
);
BasebandInstantBitrateHistogram = (
0,
0,
0,
0,
0,
0,
0,
0
);
BasebandQueueDelayHistogram = (
0,
0,
0,
0,
0,
0,
0,
0
);
BasebandTargetBitrateHistogram = (
0,
0,
0,
0,
0,
0,
0,
0
);
BasebandVideoFlush = 0;
BasebandVideoPause = 0;
}
2015-10-04 8:40:17.468 PM rtcreportingd[1843]: -[AWDStats sendVideoStatusToAWD]: MetricType_Facetime_VideoStatus {
VideoJitterHistogram = (
0,
0,
0,
0,
0,
0,
0,
0,
0,
0
);
VideoRxFramerateHistogram = (
0,
0,
0,
0,
0,
0,
0,
0,
0,
0
);
VideoTargetFramerate = 30;
VideoTxFramerateHistogram = (
0,
0,
0,
0,
0,
0,
0,
0,
0,
0
);
VideoVRAHistogram = (
0,
0,
0,
0,
0,
0,
0
);
}
2015-10-04 8:40:17.468 PM rtcreportingd[1843]: -[AWDStats sendInterfaceStatusToAWD]: MetricType_Facetime_InterfaceStatus {
CallDuplicationPercentage = 0;
DuplicationWithoutHandoverCount = 0;
FailOverToCellCount = 0;
HandOverToWifiCount = 0;
HandOverWithDuplicationCount = 0;
HandOverWithoutDuplicationCount = 0;
InterfaceCurrentCellTech = WiFi;
InterfaceCurrentDuration = 6;
InterfaceTermination = 228;
}
2015-10-04 8:40:17.468 PM rtcreportingd[1843]: -[AWDStats sendAudioTierHistogramToAWD]: MetricType_Facetime_AudioTierReport {
AudioTierReportAudioTiers = (
{
AudioTierCounterBundling = 1;
AudioTierCounterCodecBitrate = 32000;
AudioTierCounterCodecPayload = 104;
AudioTierCounterCount = 5;
AudioTierCounterDuplication = 2516013796;
AudioTierCounterMode = 1;
AudioTierCounterTier = 32767;
}
);
}
2015-10-04 8:40:17.468 PM rtcreportingd[1843]: AWDStats: sendFaceTimePeerToPeerEnded succeded