# NVENC not available on Windows g2.2xlarge EC2 instance **URL:** \ **Category:** Wowza Streaming Engine\ **Created:** [March 12, 2014, 10:23am UTC](https://community.wowza.com/t/nvenc-not-available-on-windows-g2-2xlarge-ec2-instance/41890 "2014-03-12T10:23:29Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![Gabriel\_Avram](https://avatars.discourse-cdn.com/v4/letter/g/c0e974/32.png) [@Gabriel\_Avram](https://community.wowza.com/u/Gabriel_Avram)\ **Post date:** [March 12, 2014, 10:23am UTC](https://community.wowza.com/t/nvenc-not-available-on-windows-g2-2xlarge-ec2-instance/41890/1 "2014-03-12T10:23:29Z")
Hello, We just upgraded to Wowza Streaming Engine 4. I am trying to enable the hardware encoding on our Windows 2008 server g2.2xlarge EC2 instance and I followed the steps below with no success: 1. enable the transcoder in the application 2. set the video/transcoder element as follows: true main mp4:${SourceStreamName}\_main H.264 NVENC -1 When I start streaming I see the following feedback in the wowza log file: JNI:VideoEncoderH264QuickSyncHost[global]: QuickSync: hardware acceleration is not available (software only) JNI:TranscoderSession.isCUDAAvailable[_defaultVHost_:MVC/_definst_/studio1]: NVidia hardware acceleration is NOT available JNI:TranscoderSession.isQuickSyncAvailable[_defaultVHost_:MVC/_definst_/studio1]: Intel Quick Sync hardware acceleration is NOT available. that shows that the software encoder is used. Is anybody using NVENC on EC2 GPU licenses successfully? Thanks’ ---
**Author:** ![Richard\_Lanham](https://avatars.discourse-cdn.com/v4/letter/r/c68b51/32.png) [@Richard\_Lanham](https://community.wowza.com/u/Richard_Lanham)\ **Post date:** [March 12, 2014, 4:23pm UTC](https://community.wowza.com/t/nvenc-not-available-on-windows-g2-2xlarge-ec2-instance/41890/2 "2014-03-12T16:23:13Z")
Hi, There are a couple of necessary added steps [which are detailed here](https://www.wowza.com/docs/how-to-configure-nvidia-nvenc-accelerated-encoding-on-amazon-ec2-g2-nvenc%28G2-NVENC%29). Richard ---
**Author:** ![Richard\_Lanham](https://avatars.discourse-cdn.com/v4/letter/r/c68b51/32.png) [@Richard\_Lanham](https://community.wowza.com/u/Richard_Lanham)\ **Post date:** [March 12, 2014, 5:57pm UTC](https://community.wowza.com/t/nvenc-not-available-on-windows-g2-2xlarge-ec2-instance/41890/3 "2014-03-12T17:57:26Z")
Have you seen [this article?](https://www.wowza.com/docs/how-to-enable-hardware-accelerated-transcoding-when-running-as-a-windows-service) And have you [configured .NET Framework 3.5.1 and Desktop Experience](https://www.wowza.com/docs/how-to-set-up-and-run-wowza-transcoder-for-live-streaming#hwDriverReq) ? Richard ---
**Author:** ![Richard\_Lanham](https://avatars.discourse-cdn.com/v4/letter/r/c68b51/32.png) [@Richard\_Lanham](https://community.wowza.com/u/Richard_Lanham)\ **Post date:** [March 12, 2014, 6:23pm UTC](https://community.wowza.com/t/nvenc-not-available-on-windows-g2-2xlarge-ec2-instance/41890/4 "2014-03-12T18:23:01Z")
Also, side-note on the instance types with 10g througput: it is our understanding that you can only get near that level of throughput between Wowza servers using internal DNS. So you can support a large edge cluster of small ec2 instances. But you are also limited by Java to about 5g of utiiization per JVM. It is possible to run [two instances of Wowza on one machine](https://www.wowza.com/docs/how-to-run-multiple-instances-of-wowza-media-server-on-one-computer) for greater utilization of the network bandwidth Richard ---
**Author:** ![Gabriel\_Avram](https://avatars.discourse-cdn.com/v4/letter/g/c0e974/32.png) [@Gabriel\_Avram](https://community.wowza.com/u/Gabriel_Avram)\ **Post date:** [March 12, 2014, 12:48pm UTC](https://community.wowza.com/t/nvenc-not-available-on-windows-g2-2xlarge-ec2-instance/41890/5 "2014-03-12T12:48:23Z")
Thanks for the quick replay, we are actually using Windows EC2 licenses, the steps that you mentioned are for a Linux instance. Do we need to switch to a Linux server environment for NVENC? I am more comfortable with Windows though. ---
**Author:** ![Gabriel\_Avram](https://avatars.discourse-cdn.com/v4/letter/g/c0e974/32.png) [@Gabriel\_Avram](https://community.wowza.com/u/Gabriel_Avram)\ **Post date:** [March 12, 2014, 2:23pm UTC](https://community.wowza.com/t/nvenc-not-available-on-windows-g2-2xlarge-ec2-instance/41890/6 "2014-03-12T14:23:41Z")
> Have you seen [this article?](https://www.wowza.com/docs/how-to-enable-hardware-accelerated-transcoding-when-running-as-a-windows-service) > > This is what I was missing. I will have to take some time to follow its’ steps. > > Thanks’