Flash audio only stream fails in IE after several successful plays

We have several audio only Flash streams that are internet radio stations playing from this page:
http://www.cbn.com/radio/
We've discovered a bug that only happens in IE.  When you click each station and open them up, they will play fine until you get to about 7 or 8 attempts.  After that, any time you try to listen to another stream, the player just says "Loading".  Refreshing the page does not help.  You have to close the page completely and then reopen it before any of the streams will start to work again.
This problem does not happen in Firefox.  In fact, once IE has gone into failure, I can leave IE running and open Firefox and everything will be working fine.
Not sure where the bug might be or how to work around it, but it's quite irritating. 
Any ideas?

Hi Jeremy,
We'll most likely need to see the code that goes with these players.  Could you please open a new bug report on this over at bugbase.adobe.com?  Please post back with the URL so that others affected can add their comments and votes.
Thanks,
Chris

Similar Messages

  • Publish an audio-only stream (HLS)

    Hi,
    the documentation says this:
    "To serve streams over a cellular network, one of the streams must be audio-only. For more information, see HTTP Live Streaming Overview.
    To publish an audio-only stream, enter the following in the Flash Media Encoder Stream field:
    livestream%i?adbe-live-event=liveevent&adbe-audio-stream-name=livestream1_audio_only&adbe-audio-stream-src=livestream1
    If the encoder specifies individual query strings for each stream, use individual stream names instead of the variable %i:
    livestream1?adbe-live-event=liveevent&adbe-audio-stream-name=livestream1_audio_only
    livestream2?adbe-live-event=liveevent&adbe-audio-stream-name=livestream2_audio_only
    To generate a set-level variant playlist when using an audio-only stream, specify the audio codec of the audio-only stream. Specify the audio and the video codec of the streams that contain audio and video. For more information about using the Set-level F4M/M3U8 File Generator, see Publish and play live multi-bitrate streams over HTTP.
    Does this mean that using one FMLE encoder (with the installed AAC plugin) i can stream BOTH audio+video AND audio only stream via HLS to iOS clients?
    If yes, how to connect to a+v stream and how to connect audio only stream in iOS  ? (To be more precise - i would need two m3u8 files, how do i create them in the provided generator)
    What about the need to provide multiple bitrates (for the audio), surely 64 isn't enough - multiple encoder machines or multiple encoder instances?

    You are right. You don't need to provide multiple bitrate audio in the variant playlist. So while specifying on FMLE
    livestream%i?adbe-live-event=liveevent&adbe-audio-stream-name=livestream1_audio_only&adbe-audio-stream-src=livestream1
    set adbe-audio-stream-src to such a  a+v stream that that audio bitrate of 64 kbps.
    This will create 4 streams for you on FMS
    livestream1, livestream2, livestream3, livestream1_audio_only
    On encoders other than FMLE, where it is not supported to publish multiple streams with a single publish option, you may publish
    1. livestream1?adbe-live-event=liveevent&adbe-audio-stream-name=livestream1_audio_only
    2. livestream2?adbe-live-event=liveevent
    3. livestream3?adbe-live-event=liveevent
    This will create 4 streams for you on the FMS
    livestream1, livestream2, livestream3, livestream1_audio_only
    Yes, there is no point publishing audio only live stream corresponding to each a+v stream. Apple spec mandates only one audio only stream of 64kbps in variant playlist

  • Audio-only streaming

    Hi there,
    Does anybody knows if it it possible to stream only audio?
    I'd like to stream video+audio (different qualities : ~1000 kbps and ~400 kbps) and audio only for low-bandwidth (~128 kbps).
    Adobe Flash Media Encoder Live allows me to stream different qualities. And what about audio-only stream?
    And of course I don't want just to hide video on client-side.
    Thanks everyone.

    Hi,
    Thanks for using FMS.
    Yes it is possible to send one video+audio stream and another audio only stream to FMS. Or even, a single audio stream alone is good enough to be sent to FMS.
    But, FMLE as of now , does not have support for two streams to be sent where one is video + audio and the other only audio. As a workaround, you can have two instances of FMLE opened (on the same machine even) and can try this.
    Does that help you ?
    Thank you ! 

  • Creating an audio-only stream from a live stream

    I am using Flash Media Live Encoder (3.2) to send multiple bitrate streams to an instance of Adobe Media Server 5. In addition to the video streams, I am trying to generate an audio-only stream.
    I am using the default 'livepkgr' application. The input stream contains H.264 video + AAC audio.
    The stream name that I set in FMLE is set to this:
    livestream%i?adbe-live-event=liveevent&adbe-audio-stream-name=livestream1_audio_only&adbe- audio-stream-src=livestream1
    I created a variant playlist to include the audio-only stream. It looks like this:
    #EXTM3U
    #EXT-X-STREAM-INF:PROGRAM-ID=1,BANDWIDTH=150000
    /hls-live/livepkgr/_definst_/liveevent/livestream1.m3u8
    #EXT-X-STREAM-INF:PROGRAM-ID=1,BANDWIDTH=500000
    /hls-live/livepkgr/_definst_/liveevent/livestream2.m3u8
    #EXT-X-STREAM-INF:PROGRAM-ID=1,BANDWIDTH=700000
    /hls-live/livepkgr/_definst_/liveevent/livestream3.m3u8
    #EXT-X-STREAM-INF:PROGRAM-ID=1,BANDWIDTH=64000,CODECS="mp4a.40.2"
    /hls-live/livepkgr/_definst_/liveevent/livestream1_audio_only.m3u8
    However, when I retrieve the audio-only playlist it contains a list of .ts files. If it was working correctly I would expect there to be a list of .aac files. Here's an extract from the playlist (livestream1_audio_only.m3u8):
    #EXTM3U
    #EXT-X-MEDIA-SEQUENCE:1927
    #EXT-X-ALLOW-CACHE:NO
    #EXT-X-VERSION:2
    #EXT-X-TARGETDURATION:8
    #EXTINF:8,
    ../../../../hls-live/streams/livepkgr/events/_definst_/liveevent/livestream1_audio_onlyNum1927.ts
    #EXTINF:8,
    ../../../../hls-live/streams/livepkgr/events/_definst_/liveevent/livestream1_audio_onlyNum1928.ts
    #EXTINF:8,
    ../../../../hls-live/streams/livepkgr/events/_definst_/liveevent/livestream1_audio_onlyNum1929.ts
    #EXTINF:8,
    ../../../../hls-live/streams/livepkgr/events/_definst_/liveevent/livestream1_audio_onlyNum1930.ts
    Any ideas why it doesn't seem to be working?
    Thanks

    Hi
    No !
    You first have to back-engineer the DVD to something the Mac can use eg StreamingDV
    (I use Roxio Toast™ to do this) then convert this via QuickTime to .aiff 16-bit 44.1 kHz
    then burn this onto a CD via eg iTunes.
    An Analog copy from a DVD-player to the Mac Line-in and into an audiuo editor as Audacity (free on internet) then use this for the CD is easier and about as good as. (I can't differ)
    Yours Bengt W

  • I want to stream all audio to my stereo via AirPort. Right now audio only streams with iTunes, not when I'm online (YouTube, SoundCloud, Spotify). What must I do? Thanks! 2011 macbook pro 10.6.8

    I want to stream all audio to my stereo via AirPort. Right now audio only streams with iTunes, not when I'm online (YouTube, SoundCloud, Spotify). What must I do? Thanks! 2011 macbook pro 10.6.8

    Thanks, Bob. I've seen this suggested before. However, I'm at a friend's place (cat-sitting). He owns an older MacBook (almost positive) and he streams audio without Airfoil. All he uses is AirPort Express. He told me to simply click alt-option and the volume icon and a menu drops down, and I select "AirPort Express". But it never appears. All the menu offers is this:
    "AirPort Express" isn't an option.
    Why is that? Is there something fundamental I'm not doing?

  • Packaging an audio-only stream (HLS)

    Dear Experts,
    I'm new to FMS. I want to packag an audio-only stream (HLS), so the people who is not at meeting room also can listen by mobile. Can you tell me how can I configuration it?
    Thank you very much!

    This article should be useful to you
    http://help.adobe.com/en_US/adobemediaserver/devguide/WSd391de4d9c7bd609-52e437a812a3725df a0-8000.2.3.html

  • The Quciktime 10.3 playback the audio-only stream of mpeg2ts seem not playback correctly

    The Quciktime 10.3 playback the audio-only stream of mpeg2ts seem not playback correctly.
    When the Quciktime 10.3 start playback my audio-only .ts file. The qucktime seem to be muted on a about 70% of progress bar. or sometime will fast-forward for a while. (not stop playing. just muted or fast-forward and the progress bar keep going on)
    but, it's playback well on Quicktime 10.2.
    this audio-only ts file as my dropbox:
    http://dl.dropbox.com/u/68121779/mp2lc-3.ts
    I have try to download the fileSequence0.ts ~ fileSequence10.ts (from http://devimages.apple.com/iphone/samples/bipbop/bipbopall.m3u8) and combined this .ts as followings command on Win7:
    copy /b fileSequence0.ts+fileSequence1.ts+fileSequence2.ts+fileSequence3.ts+fileSequenc e4.ts+fileSequence5.ts+fileSequence6.ts+fileSequence7.ts+fileSequence8.ts+fileSe quence9.ts+fileSequence10.ts fileSequence-0-10.ts
    the Quciktime 10.2 (Mountain Lion), and Media Player 12.0.7601.18150 (Win7 64bit) seem playback well.
    but, Qucitime 10.3 (Mavericks) seem muted at about 70% of progress bar.
    I think quciktime 10.3 do something changed. and make some behavior incompatible.

    The Quciktime 10.3 playback the audio-only stream of mpeg2ts seem not playback correctly.
    When the Quciktime 10.3 start playback my audio-only .ts file. The qucktime seem to be muted on a about 70% of progress bar. or sometime will fast-forward for a while. (not stop playing. just muted or fast-forward and the progress bar keep going on)
    but, it's playback well on Quicktime 10.2.
    this audio-only ts file as my dropbox:
    http://dl.dropbox.com/u/68121779/mp2lc-3.ts
    The downloaded TS file contains AAC which uses ADTS—a self synching Audio Data Transport Stream format. According to Wikipedia, "This file and streaming-based format are defined in MPEG-2 Part 7, but are only considered informative by MPEG-4, so an MPEG-4 decoder does not need to support either format." Based on this statement, my guess is that Apple now considers such support to be no longer needed in the QT X v10.3 media player since AAC content is, by default, normally found only in MOV, MP4, M4V, M4A, M4B, and similar containers which are not only supported by the system player but all Apple mobile device players. Even the latest version of VLC seems to have dropped this support for the AAC ADTS audio found in your downloaded TS file.
    As to audio dropout in QT X v10.3, the problem you describe seems to be a "sync" associated issue. On my system clicking the playhead to move its current position resets the sync and audio becomes playable again.
    I have try to download the fileSequence0.ts ~ fileSequence10.ts (fromhttp://devimages.apple.com/iphone/samples/bipbop/bipbopall.m3u8) and combined this .ts as followings commandon Win7:
    copy /b fileSequence0.ts+fileSequence1.ts+fileSequence2.ts+fileSequence3.ts+fileSequenc e4.ts+fileSequence5.ts+fileSequence6.ts+fileSequence7.ts+fileSequence8.ts+fileS e quence9.ts+fileSequence10.ts fileSequence-0-10.ts
    Somewhat confused by your playlist URL reference here. Reference is for the following:
    which is a QuickDraw video file which might be more easily captured as a QT X player screen rendering at a desired playback resolution. Since you say you are dealing with other TS sequences here, I am not even certain this is the playlist file you really wanted to reference.

  • Secondary audio only stream?

    I have a client streaming video with FME, but wants a secondary audio-only stream. Does this mean I have to have a second iteration of FME running somehow? Is that possible?

    Hi Jeremy,
    We'll most likely need to see the code that goes with these players.  Could you please open a new bug report on this over at bugbase.adobe.com?  Please post back with the URL so that others affected can add their comments and votes.
    Thanks,
    Chris

  • Quick Time 7.0 Pro (7.7.3) on Win 7 Home Prem 64-bit, Pro paid for, valid registration code, Open Image Sequence (and resulting time-lapse movies) has quit working after several successful operations.  What do?  How fix? Thanks.

    Quick Time 7.0 Pro (7.7.3) on Win 7 Home Prem 64-bit, Pro paid for, valid registration code, Open Image Sequence (and resulting time-lapse movies) has quit working after several successful operations.  What do?  How fix? Thanks.

    This tip is ready for submission.
    It REPLACES the prior version in the Time Machine forum, at: http://discussions.apple.com/thread.jspa?threadID=2057525
    Additions/wording changes to items C3, C4, C5, D4
    New topics C9, C10, C11, and E4

  • RTMP Audio Only Streams and the BufferTrait

    I'm encountering and issue when trying to access the bufferTrait of an RTMP stream that is audio only.
    I can "getTrait" and it retrieves it, but when I try to adjust the bufferTime, it doesn't register any adjustments.
    We have a custom buffering to our video streams, and for video streams it is correctly adjusting the bufferTime, but for audio only running through the same custom plugin, no adjustments to the BufferTime are being made, and I can't find a way to increase the buffer.
    Is there is specific limitation on BufferTrait when dealing with Audio Only?
    Thanks,
    -Will

    Did you try creating  a BufferTrait  variable and then assigning to the variable.bufferTime the new value?
    Do you mind publishing your code to see if there is any problem with it, please.

  • Sending Audio-only stream to iOS

    What is the URL coming off FMS that I feed to the iOS device?
    FMS URL: rtmp://server/livepkgr
    Stream: livestream?adbe-live-event=liveevent
    video: box is unchecked to send audio-only
    audio can be either AAC or mp3, does this change the URL of the stream?
    Thanks,
    Joe

    You connect output 1 of your interface to your active speaker.
    You connect output 2 of your interface to the input of your external effect.
    You connect the output of your external effect to input 2 of your interface.
    You route your track in Logic to output 2.
    You create a new track.
    You route this new track to output 1 and output 1 only.
    You choose input 2 as the source for this track.
    You arm the track.
    You hit Record.
    You hit Stop some time later.
    Christian

  • Adobe PDF Converter stops creating PDFs after several successful prints.

    We have an application that create reports that we want to print to PDF and save on our server.  We have been doing this for years.  Have 50 employees doing this.  One computer is having an issue were they will print to the "PDF Printer" and the pdf output file is save to their desktop, but after multiple successful prints, the print will get hung up in the PDF Printer Queue.
    This is on a Win7 Machine, with current windows updates, using Acrobat X Standard version 10.1.10  so I think I am up to date.
    Does anyone have suggestions about what to look at or where the problem may be coming from.
    To fix the problem the user can shut down (restart) the computer and printing to pdf works again.

    I don't get any messages in the queue or any place that I know of.  I looked in the system log and application log for hints and nothing occurs at the time of the error .  Do you have suggestions of where to look for errors that I may have missed?
      The print just stay their.  We usually set the output to also display when completed but Acrobat never displays the report. So somewhere the program hangs or fails.

  • Audio-only stream

    could i publish only audio without video to fms using fmle?

    Hi Jeremy,
    We'll most likely need to see the code that goes with these players.  Could you please open a new bug report on this over at bugbase.adobe.com?  Please post back with the URL so that others affected can add their comments and votes.
    Thanks,
    Chris

  • Flash Builder 4.5 fails to update after a clean install

    Install 4.5 on my Mac
    Configure nothing/do nothing
    Run Update
    Get the following:
    I am getting conflicts even though alll I have done is a fresh install.

    i'm using Flash Builder 4.6 for PHP and tried uncommenting the config lines and still get these errors.
    In addition, i want to install the ADT Plugin to do native android development and get the same error.  This is really frustrating since i just want to use 1 IDE for all my dev.  Please HELP!!
    Cannot complete the install because of a conflicting dependency.
      Software being installed: Eclipse IDE for Java Developers 1.3.2.20110301-1807 (epp.package.java 1.3.2.20110301-1807)
      Software currently installed: BlackBerry Tablet OS Plugin for Adobe Flash Builder 1.2.0.201110311231 (com.qnx.tools.flashbuilder45.feature.group 1.2.0.201110311231)
      Software currently installed: Zend Studio for Flash Builder 4.5.1.v20110609-1000-8J8yCeFQvEteMB6jnqJy3X1Kg6GL (com.zend.php.flashbuilder.all.feature.group 4.5.1.v20110609-1000-8J8yCeFQvEteMB6jnqJy3X1Kg6GL)
      Only one of the following can be installed at once:
        Core File Systems 1.3.0.v20100526-0737 (org.eclipse.core.filesystem 1.3.0.v20100526-0737)
        Core File Systems 1.3.1.R36x_v20100727-0745 (org.eclipse.core.filesystem 1.3.1.R36x_v20100727-0745)
      Only one of the following can be installed at once:
        ECF Core API 3.1.0.v20100529-0735 (org.eclipse.ecf 3.1.0.v20100529-0735)
        ECF Core API 3.1.0.v20100906-1425 (org.eclipse.ecf 3.1.0.v20100906-1425)
      Only one of the following can be installed at once:
        Views 3.5.0.I20100527-0800 (org.eclipse.ui.views 3.5.0.I20100527-0800)
        Views 3.5.1.M20110202-0800 (org.eclipse.ui.views 3.5.1.M20110202-0800)
      Cannot satisfy dependency:
        From: BlackBerry Tablet OS Core Shared 1.1.0.201110311231 (com.qnx.tools.bbt.core 1.1.0.201110311231)
        To: bundle org.eclipse.core.filesystem [1.3.1,2.0.0)
      Cannot satisfy dependency:
        From: BlackBerry Tablet OS Plugin for Adobe Flash Builder 1.2.0.201110311231 (com.qnx.tools.flashbuilder45.feature.group 1.2.0.201110311231)
        To: com.qnx.tools.bbt.core [1.1.0.201110311231]
      Cannot satisfy dependency:
        From: Zend Studio Feature 8.0.1.v20101203-1424-Bb7Z98Fh1z-WD1aqSLsR8mU (com.zend.php.feature.group 8.0.1.v20101203-1424-Bb7Z98Fh1z-WD1aqSLsR8mU)
        To: org.eclipse.ecf [3.1.0.v20100529-0735]
      Cannot satisfy dependency:
        From: Zend Studio for Flash Builder 4.5.1.v20110609-1000-8J8yCeFQvEteMB6jnqJy3X1Kg6GL (com.zend.php.flashbuilder.all.feature.group 4.5.1.v20110609-1000-8J8yCeFQvEteMB6jnqJy3X1Kg6GL)
        To: com.zend.php.feature.group [8.0.1.v20101203-1424-Bb7Z98Fh1z-WD1aqSLsR8mU]
      Cannot satisfy dependency:
        From: Eclipse IDE for Java Developers 1.3.2.20110301-1807 (epp.package.java 1.3.2.20110301-1807)
        To: org.eclipse.epp.package.java.feature.feature.group [1.3.2.20110301-1807]
      Cannot satisfy dependency:
        From: Eclipse IDE for Java Developers 1.3.2.20110301-1807 (epp.package.java 1.3.2.20110301-1807)
        To: org.eclipse.platform.ide 0.0.0
      Cannot satisfy dependency:
        From: EPP Java Package 1.3.2.20110301-1807 (org.eclipse.epp.package.java.feature.feature.group 1.3.2.20110301-1807)
        To: org.eclipse.platform.feature.group [3.6.2.r362_v20110210-9gF78Gs1FrIGnHDHWkEcopoN8AmxeZflGDGKQi]
      Cannot satisfy dependency:
        From: Equinox p2 Provisioning 2.0.1.r361_v20100903-897HFa-FX0z-z-ntoaavz0JPX628 (org.eclipse.equinox.p2.user.ui.feature.group 2.0.1.r361_v20100903-897HFa-FX0z-z-ntoaavz0JPX628)
        To: org.eclipse.ecf [3.1.0.v20100906-1425]
      Cannot satisfy dependency:
        From: Eclipse Platform 3.6.0.v20100602-9gF78GpqFt6trOGhL60z0oEx3fz-JKNwxPY (org.eclipse.platform.feature.group 3.6.0.v20100602-9gF78GpqFt6trOGhL60z0oEx3fz-JKNwxPY)
        To: org.eclipse.core.filesystem [1.3.0.v20100526-0737]
      Cannot satisfy dependency:
        From: Eclipse Platform 3.6.1.r361_v20100909-9gF78GrkFqw7GrsZnvz0JWNTeb6fue6896L (org.eclipse.platform.feature.group 3.6.1.r361_v20100909-9gF78GrkFqw7GrsZnvz0JWNTeb6fue6896L)
        To: org.eclipse.ui.views [3.5.0.I20100527-0800]
      Cannot satisfy dependency:
        From: Eclipse Platform 3.6.2.r362_v20110210-9gF78Gs1FrIGnHDHWkEcopoN8AmxeZflGDGKQi (org.eclipse.platform.feature.group 3.6.2.r362_v20110210-9gF78Gs1FrIGnHDHWkEcopoN8AmxeZflGDGKQi)
        To: org.eclipse.ui.views [3.5.1.M20110202-0800]
      Cannot satisfy dependency:
        From: Eclipse Platform 3.6.0.I20100608-0911 (org.eclipse.platform.ide 3.6.0.I20100608-0911)
        To: org.eclipse.platform.feature.group [3.6.0.v20100602-9gF78GpqFt6trOGhL60z0oEx3fz-JKNwxPY]
      Cannot satisfy dependency:
        From: Eclipse Platform 3.6.1.M20100909-0800 (org.eclipse.platform.ide 3.6.1.M20100909-0800)
        To: org.eclipse.platform.feature.group [3.6.1.r361_v20100909-9gF78GrkFqw7GrsZnvz0JWNTeb6fue6896L]
      Cannot satisfy dependency:
        From: Eclipse Platform 3.6.2.M20110210-1200 (org.eclipse.platform.ide 3.6.2.M20110210-1200)
        To: org.eclipse.equinox.p2.user.ui.feature.group [2.0.1.r361_v20100903-897HFa-FX0z-z-ntoaavz0JPX628]

  • Backup Fails after several successful days - errors "Device is not ready" & "The System cannot find the path specified"

    Well I am back again, with another backup issue. After fixing one issue with the backup failing after a reboot, I have encountered another which is starting to cause me a lot of headaches.
    The setup is thus - the backups run on a host machine running Windows Server 2012, this hosts three VM's (1x Server 2012 and 2x2008 Since the 19th of December a single backup drive has been attached for the backups (not ideal but the company had closed for
    the holidays) up until the 26th these backups were working flawlessly. 
    On the 26th the backup completed with warnings, transferring a good 90% of the data to the backup (2/3 VMs). On the 27th it transferred a bit more at around 95% (2/3 VMs).  On the 28th, it didn't completely backup a single VM.
    On the 28th this error appeared in the event logs and after checking in the snap-in the same errors appear on the warning days as the errored day.
    The backup operation that started at '‎2014‎-‎12‎-‎28T20:30:09.774946400Z' has failed with following error code '0x80780049' (None of the items included in backup were backed up.). Please review the event details for a solution, and then rerun the backup
    operation once the issue is resolved.
    Thanks in advance/

    Hi,
    Please check the detailed error message in the backup log files in C:\Windows\Logs\WindowsServerBackup. In additional, you could go through the similar thread to help troubleshoot this issue:
    Windows 2012 Backup for HyperV failed with error code '0x80780049'
    http://social.technet.microsoft.com/Forums/windowsserver/en-US/f1a0c9c6-7b4c-409c-b4da-c145b8b59eb1/windows-2012-backup-for-hyperv-failed-with-error-code-0x80780049?forum=winserverhyperv
    Best Regards,
    Mandy
    Please remember to mark the replies as answers if they help and unmark them if they provide no help. If you have feedback for TechNet Subscriber Support, contact [email protected]

Maybe you are looking for

  • How to display the outline of a DelegateShape?

    I want to draw the outline of a DelegateShape. In the script below two stages are created, A and B. Each displays the same defined Circle. In A it appears as a black filled circle. In B it shows (correctly) as a red outlined circle. How do I get an o

  • Watch video iPad to tv

    Trying to watch video from iPad on tv with a composite av cable - sound but no picture showing.

  • Need Help w/ error message...​..

    My blackberry curve 8350 is showing error message 561constantly...Seems the desktop software isn't reading my phone either to reload software...what else can I do?

  • About Creative cloud and Photoshop CC

    I use google translator because my English is poor. I bought the product for a monthly fee of about 24e and now I have here only a trial version. It is in Finnish. I would like the English version, because I'm used to Elements in the English version

  • AYUDA CON COLOR SETTINGS!!! por favor!!!! e impresion!!! en MAC

    Tengo varios problemas con photoshop cs. Cuando intento entrar a la paleta de COLOR SETTINGS automaticamente el programa se queda como colgado y no responde, aparece el color piker y muere ahi. Tengo que hacer un FORCE QUIT con la mac para poder segu