Adobe Flash goes nuclear - takes down entire network

We have 10 Windows computers on a small unmanaged gigabit network with a DD-WRT Linksys WRT-54GS router and Dlink 2208 hubs, and were having problems with the network dieing, and nobody able to reach the internet or other computers on the network. It started happening suddenly. There are additionally 3 VOIP lines on this network too and they would be killed.
In troubleshooting, I could see an enormous amount of activity coming from one section of the network. Disconnnecting this segment brought the network back online and functioning correctly. Further tracing based on the flashing lights on the front of the hubs narrowed the problem to one computer, a new Windows XP-64 bit computer. When I brought up the Local Area Connection Status in Windows, I could see an enormous number of packets being sent.
Close to a million packets per second were being sent from this computer.
Adobe Flash Player (ver 10,1,82,76) was taking a tremendous amount of CPU time for an idle computer, and killing this in task manager resulted in the network coming back alive immediately.
Is this a known problem with Adobe Flash going nuclear and killing an entire network?
(I had this problem twice before and was never able to trace it to my satisfaction.)

Yes, sometimes Flash Player doesn't close down when Firefox is shut down. I didn't find any gremlins on my computer during virus analysis, so can't comment on that. I suppose I could find the problem site and SWF, but since I didn't develop it, my concern with Flash is that it can get into such a snit, that it can take down an entire network and not just a computer.
My concern is summarized this way.
1. Was there something else on my computer that caused this problem. (virus etc)
2. If it is Flash causing this problem, perhaps Steve Jobs concerns with Flash were legit?? (I see Apple has backed down)
3. Grandma certainly wouldn't have been able to resolve this issue, and most computer users would have blamed their ISP since their internet was down.
4. How is the average computer user to deal with the complexity that these new technologies sometimes dump on them?
5. Are we headed to systems that are so complicated that these type of isses become more and more common?

Similar Messages

Flash Player goes nuclear - takes down entire network

We have 10 Windows computers on a small unmanaged gigabit network with a DD-WRT Linksys WRT-54GS router and Dlink 2208 hubs, and were having problems with the network dieing, and nobody able to reach the internet or other computers on the network. It started happening suddenly. There are additionally 3 VOIP lines on this network too and they would be killed.
In troubleshooting, I could see an enormous amount of activity coming from one section of the network. Disconnnecting this segment brought the network back online and functioning correctly. Further tracing based on the flashing lights on the front of the hubs narrowed the problem to one computer, a new Windows XP-64 bit computer. When I brought up the Local Area Connection Status in Windows, I could see an enormous number of packets being sent.
Close to a million packets per second were being sent from this computer.
Adobe Flash Player (ver 10,1,82,76) was taking a tremendous amount of CPU time for an idle computer, and killing this in task manager resulted in the network coming back alive immediately.
Is this a known problem with Adobe Flash going nuclear and killing an entire network? I had this problem twice before and was never able to trace it to my satisfaction and now I wonder if this was what happened.
(was originally posted in Flash but I suppose I should have posted it here since it is a player problem)

Yes, sometimes Flash Player doesn't close down when Firefox is shut down. I didn't find any gremlins on my computer during virus analysis, so can't comment on that. I suppose I could find the problem site and SWF, but since I didn't develop it, my concern with Flash is that it can get into such a snit, that it can take down an entire network and not just a computer.
My concern is summarized this way.
1. Was there something else on my computer that caused this problem. (virus etc)
2. If it is Flash causing this problem, perhaps Steve Jobs concerns with Flash were legit?? (I see Apple has backed down)
3. Grandma certainly wouldn't have been able to resolve this issue, and most computer users would have blamed their ISP since their internet was down.
4. How is the average computer user to deal with the complexity that these new technologies sometimes dump on them?
5. Are we headed to systems that are so complicated that these type of isses become more and more common?

Server 2008 R2 SP1 with RRAS takes down entire network

We have a Hyper-V server (2008 R2 SP1) that is running several DC's. These DC's are for different domains and establish outbound VPN connections using RRAS to sync with remote DC's. We have a few of this with 20-30 DC's running on each Hyper-V
server.
Application of SP1 to the host OS went without issue and everything remained normal.
Upgraded a single Hyper-V VM from 2008 R2 to 2008 R2 SP1 and everything connected to the physical switch went down. Ping times went through the roof and timeouts were happening on the local physical network. All Hyper-V guests on all
Hyper-V machines had CPU usage that went from about 0% up to averaging 5% to 7%. The processing taking all the CPU was the LocalServiceNoNetwork one which is related to packet inspection.
Using the process of elimination, we found that if we stopped RRAS on the Hyper-V guest running 2008 R2 SP1 then everything went back to normal. We duplicated the same scenario with a different machine...and again, just stopping RRAS fixed everything.
As soon as RRAS starts, the network crashes.
Has anyone else seen anything like this? I plan on opening a case with PSS tomorrow but thought I'd ask.
Rob
Rob

PSS is useless. They work on the ticket when convenient for their overseas hours and have no idea what is wrong. They keep asking for the same information over and over. We've decided to remove the RRAS component from our VM's. Instead
we've decided to set up a VPN configuration where we use IPSec tunnels for each VM. This allows us to remove all the RRAS roles and the issue goes away with SP1 applied.
There is definitely something wrong with SP1, RRAS and Hyper-V. Maybe Microsoft can figure it out on their own time. It is easier and simpler for us to just remove the component.
For historical reference, the issue seems to be that RRAS with SP1 picks up packets that are not destined for the RRAS tunnel and attempts to retransmit them. This, in turn, saturates the switches with retransmit packets and takes down the entire network.
Microsoft has absolutely no clue on how to resolve the issue and the techs have so little knowledge in real networking troubleshooting that it is laughable.
Rob

Problem with the adobe flash player, its falling down, what to do?

Its always falling down almost immediately when i hear music. I have tried to update Adobe Flash player and so on. But it still not working, its strange but i have been thinking if Mozilla doesn't ''allow'' the adobe flash player. Do I need maybe change Firefox to something else??

Is it only the sound or do you have other problems with Flash as well?
See [[No sound in Firefox]] and [[Video or audio does not play]]
You can click the Volume icon on the Windows Taskbar near the clock and click the Mixer link at the bottom to open the mixer.
You can adjust the volume level for each application in that window, so make sure that Firefox is not muted or set at a low level.
You will only see the Firefox program in the Mixer if you are on a website that plays sound.
You can also try to uninstall and reinstall Flash.
Troubleshoot Flash Player installation for Windows: http://kb2.adobe.com/cps/191/tn_19166.html
Flash Player uninstall: http://www.adobe.com/go/tn_14157 (this will remove the Firefox Flash plugin and the ActiveX control for IE)

Adobe Flash not working shutting down Safari

So my parents Mac Mini is having issues, and it's out of warranty, and Apple Care already gave me my one free get out of jail card. When trying to open a page that has flash, Safari shuts down and says there's something wrong with the plug in. I take out flash, Safari works fine, as instructed by Apple Care, but then I can't get any flash based content. I install flash player again, and it results in the same thing.
Help please!

Can you give us some info about your parents' Mini?
Intel or PPC Mini?
OSX version?
Safari version?
Flash player version?
Have you run Utilities > DiskUtility and repaired permissions yet?
Is there some particular website where the flash is a problem, or do you encounter this problem on all flash-based websites, for example, youtube.com ?

New iMac slowing down entire network's internet

I recently purchased a new iMac (warning, I'm a PC user up until a few days ago), and have noticed that any time I have the iMac on (idle, having just started up) the internet for the other 2 computers on the networks drags terrible (long page load times, etc)
It's as if the new machine is hogging up all the bandwidth, while doing nothing.
I've experienced this problem in the past, when my younger brother was home from college & had his macbook. Any time he was on his macbook, the connection for the rest of the network would become unreliable. This was on a completely different network from the one I'm currently having a problem with.
Has anyone else run into this problem?
Being new to Macs, I'm not even sure where to start looking for the problem.
Any help/feedback would be greatly appreciated.
Thanks.

Welcome to Apple Discussions.
I'd start by going to System Preferences > Network click on Ethernet or Airport or both and be sure your setup is correct. There's an "Assist me" button in each.
EDIT: I'd also suggest you take a look atSwitch 101. There's a wealth of info there.
-mj
Message was edited by: macjack

Adobe flash player continually slows down the loading of pages on firefox. Is there a way to toggle the Flash plud in on and off instead of it always trying to load?

slows down or stops browser. what to be able to turn it off and on
and not have it always on when browsing, only when needed.

Yep, you turn of Flash in a better way. Install FlashBlock, an extension from here-
(https://addons.mozilla.org/en-US/firefox/addon/flashblock/)
This would block Firefox from automatically downloading Flash content. If you wish to view the video, simply click on the Placeholder for that video. Simple!!!

Imac slowing down entire network internet

just hooked up a 2009 imac 21.5 intel to my home net work. now evry computer in the house nas a super slow internet connection including the imac when i disconnect the imac evything is fine i have adsl connection the app on my iphone is showing between 12-15 without imac and barely 1 with it (download speed)
Even if i hard wire imac to modem same problem
HELP!!!!

No, OK lets check one more thing on the router. First routers have multiple channels, however most people NEVER change the channel their router is on. If you live in an area where there are lots of WI-FI networks that means you and neighbors could be competing for the same channel. You can download an app called iStumbler from macupdate.com and it will scan your neighborhood to see what channel you and your neighbors are on. If you find you are on the same channel as your neighbors (usually channels 5 or 6) then you can change the channel on your router. Again you'd have to call Verizon to get instructions.
After that change and if you still have the problem the next thing to do is change the DNS settings. This is easy to do and causes no harm. For instructions click DNS Settings Update.

Adobe Flash Player stopped potentially unsafe operation - Experts, help!

Greetings! This message is posted in this section (and in Flash Player, too) because the primary program I am using for my webste is Dreamweaver. So, if you can help me, I would really appreciate it....
This message above made me very nervous. Here's the rest of what the message said:
In the Title Bar - It reads "Adobe Flash Player Security"
Then in the message section:
The following local application on your computer or network:
C:\ (the address of my index page - using Dreamweaver & Flash CS3)\index.html
is trying to communicate with this Internet-enabled location:
s.ytimg.com
To let this application communicate with the Internet, click Settings.
You must restart the application after changing your settings.
Then - buttons with the choices "OK" and "Settings..."
So, in addition to this pop up message, now when I link to some (not all) of my newer pages, the nav bar no longer works when I'm on that linked page.
I'm pretty worried that I've done something really wrong or that a virus is going to take down my site.
Can anyone provide me with encouraging help that will resolve this problem?
Home Page: www.fairwoodcommunitynews.com
Thanks in advance.

It's simply a reference to the YouTube video. When viewing pages locally and not live on the server, adding security exceptions may be required, so I don't think it is anything out of the ordinary...
Mylenium

Adobe Flash Crash Problem Windows 8.1 FireFox

I have had an issue with not being able to watch any video's or play games on my computer due to adobe flash constantly crashing. I have an HP computer- 64 with windows 8.1 and I use Firefox. I thought I resolved the issue when I uninstalled and then reinstalled adobe, but when I restarted my computer for updates it went back to crashing. I have reset my firefox browser and that did not help anything. I also have found that everytime I restart or shut down my computer adobe flash goes back to malfunctioning. I also wanted to add that I checked the plugins on my browser and it says I have Adobe Acrobat 11.0.6.70 active and ShockwaveFlash 13.0.0.182 active. How do I fix this frustraiting problem?

7acmartin wrote:
IS NO ONE ABLE TO HELP ME!?!?!? 70+ People have seen this and not one is abe to help?
This is a user-to-user forum... not support... and sometimes, the people who have the answers are busy with other things.
Have you done a complete "clean install"?
Download the Flash Player uninstaller: Flash Player Uninstaller (825 KB)
Download the Flash Player FULL Installer: Flash Player Plug-in (All other browsers)
Go to: C/ Windows/System32/Macromed/Flash and delete EVERYTHING that Windows 8 will allow (It'll give you trouble with the ActiveX plug-in because it's embedded by Microsoft - avoid it)
Go to: C/ Windows/SysWOW64/Macromed/Flash and delete EVERYTHING that Windows 8 will allow (Again, it'll give you trouble with the ActiveX plug-in because it's embedded by Microsoft - avoid it)
Emtpy your Recycle bin.
Run the FULL installer.

I have been unable to upgrade adobe flash player software.

I am using a recently purchase MacBook Air running Yosemite 10.10.1. Upon receiving a warning that I needed to upgrade Adobe Flash Player Software, I down loaded and installed the latest version several times. I still, however, continue to receive the "Need to Upgrade" message when trying to view online videos.

A genuine alert that Flash is outdated and blocked is shown on this page. Follow the instructions on the page in that case. Otherwise, the alert is fake and someone is trying to scam you into installing malware. If you see fake update alerts on more than one website, ask for instructions.

I have a vista 64bit machine. what is the lastest version of Adobe Flash that I can download?

i have a vista 64 bit machine. What is the latest version of Adobe Flash that I can down loan? Alternatively, when will flash be available for vista 64 bit machines? HELP?

The latest version is 11.4.402.265; the installer will automatically install both 32-bit and 64-bit players on Vista x64 and Windows 7 x64 machines.
[topic moved to Flash Player forum]

Adobe flash player won't load on my Mac

I got a notification on my MAC OS X 10.6.8 saying to upload the latest version of Adobe flash player.
I went ahead (then restarted the computer) but since then all my applications have been blocked, saying "blocked plug in".
Took advice and uninstalled any previous Adobe flash players from the Applications folder - then resinstalled the up to date Flash Player.
Restarted the PC again, but its made no difference. Safari still won't accept the Flash Player, my applications file shows that no Adobe Flash Player is installed and its now rendering my applications unusable.
I've been advised that Apple make the Adobe flashplayer update mandatory in order to continue using the MAC - frustrating to say the least !

Thank you for your answer.
I have un-installed all flash players. I went into a page where it confirms that if the "grey box below is blank" this confirms you have no flash player installed.
The message now says I need to install a flash player to run (whichever) app and to "click here".
I do so, the Adobe flash goes through stage of 1-2-3 and the usual box shows the download as it is happening, but at the end of it there is still no installation and I continue to get the same message - flash player is needed. (I have restarted the MAC inbetween)

HT2128 I keep on getting updates for Adobe Flash Player.app, are these safe to download?

I keep on getting messages to download updates for Adobe Flash Player.app however, I always get a warning message since it is an application downloaded from the internet and the question "Are you sure you want to open it?" Are these safe to download, or shall I cancel it? Perhaps it is best to go to the Adobe site? Any recommendations? Thank you very much.

It can be easier to remove Adobe Flash Player from OS X entirely, and be done with the effort involved. Adobe has a tool to remove Flash Player from OS X available. (If you really need Flash capabilities, there's a version embedded in the Chrome web browser that might suffice.)
As for your question, if you have gone directly to the Adobe web site (by entering the URL in Safair, and not by clicking on anyting in email or on another web site), and have downloaded Adobe Flash Player updates from there, then you're reasonably safe.
If you've downloaded the Adobe update bits from the Adobe site (and again, not from any other site), then clicking through the "yes, I know I downloaded this" is probably safe.

Allocator race detected, Adobe Flash Pro CS5 on Mac OS X 10.5.8 using network accounts

Hello,
I manage a number of academic computer labs, three of which are Mac OS X 10.5.8 units with Adobe Flash CS5 installed. Users log in using AD credentials and the client computers are managed with settings in OD Workgroup Manager (MCX records). The AD plugin is set to not force local home directories and users' home directories are located on network storage. ~/Library/Caches/* has been redirected locally, but no other folders are redirected.
Users have been reporting an issue where Flash sometimes appears to freeze during loading. I've been told this has been happening for about two semesters, but I was not aware of the issue until today. It sounds like students have been powering off the machines and logging back in, and hoping Flash will work on that attempt. When a 'freeze' is encountered the Flash splash screen appears and the status below the "Adobe Flash Professional CS5" text states it is "Copying First Run Files..."
Checking the console, I can see that Flash appears to be attempting to access files, but is encountering issues. Dozens of times, I see errors like the following:
11/3/11 3:17:41 PM /Applications/Adobe Flash CS5/Adobe Flash CS5.app/Contents/MacOS/Adobe Flash CS5[2801] Allocator race detected: transaction is not verified for -112/2 - Library/Application Support/Adobe/Flash CS5/en_US/Configuration/ProcScripts/svg/LineBrushArt10.svg
11/3/11 3:17:45 PM /System/Library/CoreServices/coreservicesd[62] removing dropped transaction for -112,Library/Application Support/Adobe/Flash CS5/en_US/Configuration/ProcScripts/svg/LineBrushArt10.svg
11/3/11 3:17:45 PM /Applications/Adobe Flash CS5/Adobe Flash CS5.app/Contents/MacOS/Adobe Flash CS5[2801] Allocator race detected: transaction is not verified for -112/2 - Library/Application Support/Adobe/Flash CS5/en_US/Configuration/ProcScripts/svg/LineBrushArt11.svg
11/3/11 3:17:45 PM /Applications/Adobe Flash CS5/Adobe Flash CS5.app/Contents/MacOS/Adobe Flash CS5[2801] Allocator race detected: transaction is not verified for -112/2 - Library/Application Support/Adobe/Flash CS5/en_US/Configuration/ProcScripts/svg/LineBrushArt11.svg
11/3/11 3:17:49 PM /System/Library/CoreServices/coreservicesd[62] removing dropped transaction for -112,Library/Application Support/Adobe/Flash CS5/en_US/Configuration/ProcScripts/svg/LineBrushArt11.svg
11/3/11 3:17:49 PM /Applications/Adobe Flash CS5/Adobe Flash CS5.app/Contents/MacOS/Adobe Flash CS5[2801] Allocator race detected: transaction is not verified for -112/2 - Library/Application Support/Adobe/Flash CS5/en_US/Configuration/ProcScripts/svg/LineBrushArt12.svg
11/3/11 3:17:49 PM /Applications/Adobe Flash CS5/Adobe Flash CS5.app/Contents/MacOS/Adobe Flash CS5[2801] Allocator race detected: transaction is not verified for -112/2 - Library/Application Support/Adobe/Flash CS5/en_US/Configuration/ProcScripts/svg/LineBrushArt12.svg
11/3/11 3:17:53 PM /System/Library/CoreServices/coreservicesd[62] removing dropped transaction for -112,Library/Application Support/Adobe/Flash CS5/en_US/Configuration/ProcScripts/svg/LineBrushArt12.svg
11/3/11 3:17:53 PM /Applications/Adobe Flash CS5/Adobe Flash CS5.app/Contents/MacOS/Adobe Flash CS5[2801] Allocator race detected: transaction is not verified for -112/2 - Library/Application Support/Adobe/Flash CS5/en_US/Configuration/ProcScripts/svg/LineBrushArt13.svg
11/3/11 3:17:57 PM /System/Library/CoreServices/coreservicesd[62] removing dropped transaction for -112,Library/Application Support/Adobe/Flash CS5/en_US/Configuration/ProcScripts/svg/LineBrushArt13.svg
11/3/11 3:17:57 PM /Applications/Adobe Flash CS5/Adobe Flash CS5.app/Contents/MacOS/Adobe Flash CS5[2801] Allocator race detected: transaction is not verified for -112/2 - Library/Application Support/Adobe/Flash CS5/en_US/Configuration/ProcScripts/svg/LineBrushArt14.svg
11/3/11 3:17:57 PM /Applications/Adobe Flash CS5/Adobe Flash CS5.app/Contents/MacOS/Adobe Flash CS5[2801] Allocator race detected: transaction is not verified for -112/2 - Library/Application Support/Adobe/Flash CS5/en_US/Configuration/ProcScripts/svg/LineBrushArt14.svg
Messages like these, but listing different files, have been going on since I launched Flash at 11/3/11 3:06 PM.
If you have encountered this problem or have any information for me, please let me know.
Thank you,
Branden Ohlinger

Based on some searching and testing, it seems that if you redirect ~/Library/Application Support/Adobe/Flash CS5 to a location on the local hard drive, rather than the network account storage, the problem ceases.
I hope this helps anyone else who may run into this problem.
Take care,
Branden

Adobe Flash goes nuclear - takes down entire network

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