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Strange YouTube Issue With Gigabyte Z77X-UP5TH's Onboard NIC

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teeraash said:
Just simply change in org.chemeleon.boot.plst from:
<key>EthernetBuiltIn</key>
<string>Yes</string>
to:
<key>EthernetBuiltIn</key>
<string>No</string>

Everything is working as it should now, no wait for youtube, with hhak's network kext in the Multibeast 5.0.2.

Will have the Koutech Gigabit Ethernet 10/100/1000 PCI Express (x1) Card (Marvell) (exactly the same as Rosewill board) next week and will test throughput performance of this card compare to my built in Intel's lan in my GA-Z77X-UP5 TH. Any recommendation for the test?
Click to expand...

I tried this, and it seemed to help a bit, but it is still a problem. It still takes a few seconds to start buffering YouTube despite wireless doing it almost instantly. In addition, the thumbnails to the right for the related videos are still blacked out. Thanks for the info regardless. Hopefully we'll get a better permanent fix soon.
 
MrSmith3101 said:
http://uk.hardware.info/reviews/301...therboard-review-dual-thunderbolt-motherboard



Baaam! 100% match! We use the same NIC!

I have a big problem with upload with this NIC. On Lion it worked perfect but on mountain lion it sucks.

My skype partners don't understand me because of massive lags.
Teamviewer sessions shut down after seconds.

So there is a big problem with upload related things.
Youtube and all other kind of download things are working very good.

Currently I'm using a PCI network card but it would be awesome to use my onboard again because I have only 100Mbit connection.
Click to expand...

I also had massive problems with Skype, which led me to ditch the onboard NIC and use the Rosewill. I tracked the issue to massive UDP packet loss with the Intele1000e driver. After i switched to the Rosewill which uses the native Apple Yukon2 driver, everything worked perfectly.
 
rcork said:
I also had massive problems with Skype, which led me to ditch the onboard NIC and use the Rosewill. I tracked the issue to massive UDP packet loss with the Intele1000e driver. After i switched to the Rosewill which uses the native Apple Yukon2 driver, everything worked perfectly.
Click to expand...

Glad to hear that your problem has been solved. Rosewill works OOB?
 
cardo said:
Hi All,

I just recently built a Hackintosh using a Gigabyte Z77X-UP5TH for the motherboard. I followed Alfa's guide followed by a separate run of the 5.02 version of Multibeast for full Mountain Lion support. I am seeing a really strange issue with the on board NIC. When I attempt to watch YouTube videos, the loading indicator gets stuck in a loop, sometimes for 10 seconds or so before the video starts, and most of the time it just sits there indefinitely. I also notice that the related videos show black thumbnails. I found another user in the Tuning forum that had a similar problem with another Gigabyte board, and his solution was to switch to the other on board NIC to resolve it. In my case there is only one NIC, but I am able to resolve the problem by switching to wireless only.

Has anyone seen this problem before?

I'm using hnak's AppleIntelE1000e if that helps.
Click to expand...

Congrats Cardo, great discovery! I have the same problem but I simply didn't know I had a problem until I stumbled upon your post by chance, so thank you very much!

I thought this issue affected all Mac users, that it came from YouTube somehow playing tricks with Mac and/or Safari, some compatibility issues with some html5 videos, maybe a lingering problem due to Google only paying attention to have things working right with Chrome. I NEVER imagined the issue could have been inside my own hardware/driver combination since my network activity seemed OK in general.

I guess people only see the problem in Safari if they have not installed the Flash player, and not in Chrome because it has Flash built-in (so Chrome doesn't fetch the same video stream). So the problem would show only when streaming HTML5 video, something like that...

So this issue would be linked to some bug in AppleIntelE1000e.kext?

I've had this GA-Z77X-UP5 TH board for only a few week but I am pretty sure I saw this problem before with another build, I just can't tell exactly under what circumstances it occurred, mostly because I never thought the issue came from my Build. I don't know, maybe that build was also using the same driver?
 
rcork said:
... I tracked the issue to massive UDP packet loss with the Intele1000e driver...
Click to expand...

How exactly do you monitor packet loss if I may ask? I hope to learn something here... Thanks!
 
cardo said:
Hi All,

I just recently built a Hackintosh using a Gigabyte Z77X-UP5TH for the motherboard. I followed Alfa's guide followed by a separate run of the 5.02 version of Multibeast for full Mountain Lion support. I am seeing a really strange issue with the on board NIC. When I attempt to watch YouTube videos, the loading indicator gets stuck in a loop, sometimes for 10 seconds or so before the video starts, and most of the time it just sits there indefinitely. I also notice that the related videos show black thumbnails. I found another user in the Tuning forum that had a similar problem with another Gigabyte board, and his solution was to switch to the other on board NIC to resolve it. In my case there is only one NIC, but I am able to resolve the problem by switching to wireless only.

Has anyone seen this problem before?

I'm using hnak's AppleIntelE1000e if that helps.
Click to expand...

The problem has been mentioned on hnak's thread on insanlynac.com, see:
www.insanlynac.com/forum/index.php?showtopic=205771&view=findpost&p=1843111
[Edit]can't write url above correctly, please manually fix it.
(That thread was started by hnak, apparently the author of AppleIntelE1000e used in MultiBeast, I just hope he gets a word on to the issue)

Let's see they figure something out... I wanted to post something there but found I was not allowed to.
 
You can use JPerf to test packet loss over UDP. The easy way i figured out Skype was suffering from packet loss was by turning on Skypes preference to "Display technical call info". While in a video chat, i could see a high level of jitter and udp packet loss when using the onboard NIC. Once i got the Rosewill NIC, there was no more packet loss and low jitter.
 
I just did some testing with Wireshark, and what I'm seeing is affecting more than just traffic in YouTube. I noticed that with YouTube, it is having to reassemble a high percentage of the packets due to fragmentation. This does not happen when I switch to the TP-Link wireless card I bought when I put the Hackintosh together.

I am also seeing malformed packets with Backblaze (Online Backup). This is also not happening with the TP-Link. I suspect I'd see other problems if I were to keep getting captures using Ethernet. There is an obvious problem with the driver. Hopefully someone can fix it.
 
cardo said:
You can use http://www.wireshark.org/, but if you're not familiar with reading a network capture, it might prove to be a bit daunting.
Click to expand...

Thanks! I had a quick look at wireshark, but this seems very involved. I'm going to leave this issue on the side for now since I setup WIFI and no more issues so far.
I'll just have to remember that my wired Ethernet is not topnotch and fix it one day...
 
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