# Heavy crushing and blockiness when streaming HLS to Windows 7 computers with i5 cpu

**URL:** <https://community.wowza.com/t/heavy-crushing-and-blockiness-when-streaming-hls-to-windows-7-computers-with-i5-cpu/45306>\
**Category:** Wowza Streaming Engine\
**Created:** [May 14, 2015, 4:31pm UTC](https://community.wowza.com/t/heavy-crushing-and-blockiness-when-streaming-hls-to-windows-7-computers-with-i5-cpu/45306 "2015-05-14T16:31:12Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![Jamelle\_Legaspi](https://avatars.discourse-cdn.com/v4/letter/j/919ad9/32.png) [@Jamelle\_Legaspi](https://community.wowza.com/u/Jamelle_Legaspi)\
**Post date:** [May 14, 2015, 4:31pm UTC](https://community.wowza.com/t/heavy-crushing-and-blockiness-when-streaming-hls-to-windows-7-computers-with-i5-cpu/45306/1 "2015-05-14T16:31:12Z")

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I have a very specific and very strange issue. I get heavy crushing and blockiness on my video streams sent to my web application using JWPlayer6 only on windows 7 computers with i5 processors. MacOSX i5 processor, totally fine. Windows 7 i7 processor, great! Windows 7 i3 processor, no problem. But when we go to windows 7 i5 computers, it’s maddening. This happens on any web browser, and we are using the HLS stream for this also. We tried pre-compiling the H.264 file into HLS and then using a normal http route with no Wowza, and we were totally fine. Has anyone every seen this issue before or has heard of anything like it?

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**Author:** ![Jamelle\_Legaspi](https://avatars.discourse-cdn.com/v4/letter/j/919ad9/32.png) [@Jamelle\_Legaspi](https://community.wowza.com/u/Jamelle_Legaspi)\
**Post date:** [May 15, 2015, 5:32pm UTC](https://community.wowza.com/t/heavy-crushing-and-blockiness-when-streaming-hls-to-windows-7-computers-with-i5-cpu/45306/2 "2015-05-15T17:32:41Z")

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Guys, it’s all fixed now. I was on JWPlayer 6.8 and I just switched to JWPlayer 6.12 and everything works fine now!😉

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**Author:** ![sal\_jefferson](https://avatars.discourse-cdn.com/v4/letter/s/6de8d8/32.png) [@sal\_jefferson](https://community.wowza.com/u/sal_jefferson)\
**Post date:** [May 16, 2015, 5:54am UTC](https://community.wowza.com/t/heavy-crushing-and-blockiness-when-streaming-hls-to-windows-7-computers-with-i5-cpu/45306/3 "2015-05-16T05:54:20Z")

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Thanks for the update. This may come in handy for other users.

Glad you figured this out.

Regards,

Salvadore

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**Author:** ![Jamelle\_Legaspi](https://avatars.discourse-cdn.com/v4/letter/j/919ad9/32.png) [@Jamelle\_Legaspi](https://community.wowza.com/u/Jamelle_Legaspi)\
**Post date:** [May 21, 2015, 12:09pm UTC](https://community.wowza.com/t/heavy-crushing-and-blockiness-when-streaming-hls-to-windows-7-computers-with-i5-cpu/45306/4 "2015-05-21T12:09:46Z")

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I got the added bonus of being able to play on android devices now.