- Why is my streaming video displayed in black with no audio?
- F239/F239+/SE510 do not support streaming or recording of protected content.
1. If your HDMI video source has HDCP protected content. Most Blueray playersoutput HDCP-protected video.
2. If your composite or component video source has Macrovision protected content. Most DVD players ouput Macrovision-protected video.
- Why is my streaming video displayed in blue?
- Please check if the cables have become loose of if the video source has been turned off or is sending video signals outside of SE510 specifications.
By turning on the Temporary Frame feature, SE510 will stream the last available picture if the cable comes loose or the signal is lost during RTMP streaming.
- Why is there visible noise at the edge of the video?
- Many video signals have embeded data in the last few pixels near the edge of the picture. This data is shown as blinking or black-or-white noise in the video and can be masked by turning on the overscan feature on your monitor or TV. These settings may be titled Just Scan, Pixel Mapping, Screen Fit, or Dot by Dot.
- What is multicast streaming?
- Multicast streaming prevents your bandwidth requirements from increasing linearly as the number of clients or receivers increases. To accomplish this, the routers and switches must be configured to support multicast. This allows you to stream to hundreds of clients and is only limited by your local network infrastructure. Multicast does not work over the Internet and is most often deployed in enterprises, campuses, and local area networks. Multicast does not work well in WIFI networks due to the limitations of most WIFI access points in the market.
- What is RTMP streaming?
- RTMP streaming requires a RTMP server or cloud service to transmit data from the F239/F239+/SE510 to clients and receivers. The number of clients you can support is mostly defined by the processing power of the RTMP server.
Notable RTMP servers are the Wowza Streaming Engine and Adobe Media Server.
Internet OTT providers, such as UStream, Youtube, Twitch, and Akamai, support RTMP streaming.
- What is RTSP streaming?
- RTSP streaming is prevalent in the video surveilance industry. IP cameras must support RTSP streaming to conform to ONVIF specifications and be compliant with NVR products.
- What is HLS streaming?
- HLS is short for HTTP Live Streaming. Unlike other streaming protocols, HLS uses a HTTP to carry video and audio and, therefore, is very unlikely to be blocked by firewalls. This distinguishing feature makes it increasingly popular when streaming content across the Internet. But like RTMP, HLS also requires a centralized web server or cloud service to send video and audio content to clients. The maximum number of clients is defined by this web server.
- What equipment and software are needed to deploy multicast streaming?
- Your routers and ethernet switches must support IGMP snooping and query. VLC, AVerCaster Player, AVerReceiver, and IP set-top boxes must support receiving and display of multicast streaming.
- What equipment and software are needed to deploy RTMP streaming?
- You must have a RTMP server, most likely purchased from Wowza or Adobe. Cloud service providers, such as Amazon AWS and Microsoft Azure, also provide RTMP services.
- How many streaming channels are supported?
- SE510 supports one streaming channel from either the HDMI input or CVBS input.
- How much network bandwidth is required to stream from SE510?
- The network bandwidth required is determined by the video and audio bit rate of your encoded profile.
If you use VBR encoding, the minimum network bandwidth should be 1.4 times the total video and audio bit rates. VBR works best when high video quality is crucial and network bandwidth is not an issue. For example, if you are streaming within a local area network.
If you have low network bandwidth with an upper limit, as is the case for most Internet streaming, CBR encoding is recommended.
- Why does my streaming receiver/decoder not receive SAP from F239/F239+/SE510?
- Please check:
1. If your firewall settings block SAP. Turn off the firewall to check if this fixes the problem. If yes, change the firewall settings to open the SAP port.
2. If your PC/laptop has second network interfaces. Turn off any other interfaces until only one remains.
- Why is my streaming quality very poor and shows lag, stutter, blur, or other visible or audible distortions?
- Please check:
1. If the network equipment, such as routers, switches, or cables, need to be replaced.
2. If the network bandwidth is shared with other applications (video conferencing, web browsing, instant messaging) and shows signs of congestion. Use speedtest.net by Ookla to measure the effective network bandwidth before streaming.
3. If the encoding bit rate is too low to maintain good quality.
- Why is the Stream LED blinking blue?
- The streaming LED is off when not streaming and a solid blue when streaming. When the LED blinks blue, check if the network bandwidth is too low or congested.
You can lower the bit rate in the encoding settings or choose another network connection.
Turning on the Stream Stablizer in the Streaming Quality -> Advanced Settings tab helps reduce negative impacts on video quality caused by a congested network.
- Why is the Source LED blinking green?
- Please check: 1. If your video signal is stable and connected. Reconnect or tighten the connection if necessary. The Source LED will turn off if the signal is lost. 2. If the frame rate or resolution of the video signal has changed during streaming. While SE510 continues to stream, the picture quality may be degraded due to a change in the video signal. If the frame rate or resolution change beyond the range supported by SE510, the Source LED will turn off and a blue screen or the last stable frame will be displayed, depending on whether Temporary Frame is enabled.
- Why is the Stream LED a solid orange?
- SE510 may be unable to deliver the stream to its destination for the following reasons:
1. Network connection was lost. Check for loose cables or equipment failure.
2. The RTMP or HTTP server refuses to accept the stream from SE510. Check if your UStream, Youtube, Akamai, or CDNVideo account is valid.
- What is the streaming latency of F239/F239+/SE510?
- Please refer to the latency white paper available for download from our website.
- Which streaming protocol should I choose?
RTMP HLS RTSP TS over TCP TS over UDP UDP Multicast RTP Multicast RTP Unicast Number of clients: 1 v v v v v v v v Number of clients 2~5 v v v v v Number of clients 6~20 v v v v v Number of clients 21~100 v v v v Numer of clients 101~500 v v v v Number of clients > 500 v v Stream to Internet v Stream to Intranet v v v v v v v Stream to WIFI v v v v v v Stream to Youtube v Stream to Ustream v Stream to Akamai v Stream to CDNVideo v Require ContentDistribution
Network (Wowza, AMS, AWS,
Azure, Apache, IIS)
- How do I find the IP address for my SE510?
- Please download the NexStream application from our website or the CDROM provided. The iPad and Android tablet versions can be downloaded from the App Store and Google Play Store. Run NexStream and search the local area network to obtain the IP address for your SE510.
- Why can't I find SE510 using NexStream?
- 1. If your SE510 is in the same local area network as the PC/laptop/tablet running NexStream. Most routers do not relay multicast traffic across different ports, which prevents NexStream from finding SE510.
2. If the PC/laptop/tablet is connected to WIFI and SE510 is connected by cable to the same WIFI access point. In this case NexStream may also be unable to find SE510.
- I forgot the password for SE510. What should I do?
- Please reset SE510 to the factory default. Use a thin needle or pin to press the reset button located on the back of SE510. Push firmly and hold for five seconds. SE510 will clear all settings and reboot, after which you can log in with the default password.
- Do F239/F239+/SE510 support scrambled or encrypted streaming?
- No. Encrypted and scrambled streaming are not yet supported. If you have DRM requirements, please consider the AVerCaster Pro series.
- Why can't I open the web management interface after clicking the IP address icon in NexStream?
- Please check if the IP address for SE510 is within the same subnet as your PC/laptop. For example, if SE510 has an IP address 192.168.3.1 and your PC/laptop has 10.1.9.1, you will be unable to connect to the web management interface for SE510. You can change the IP address for either SE510 or your PC/laptop to connect within the same network.
You can also connect your PC/laptop to the built-in WIFI access point to find and connect to the web management interface.
- How should I choose among the built-in encoding profiles?
- If you are streaming to Youtube, Ustream, or Twitch, please choose one of their encoding profiles as these are set to their respective recommended encoding parameters.
Otherwise, select according to the limit of your network bandwidth and video quality. Generally speaking, higher resolution and bit rate equates to better quality and also consumes more network bandwidth.
- Why do F239/F239+/SE510 have an IP adress in the 169.254.x.x range?
- Most likely, you do not have a DHCP server to automatically assign an IP address to F239/F239+/SE510. If you connect your PC/laptop directly to F239/F239+/SE510 using a CAT5/CAT6 cable, you may also be unable to obtain an IP address from the DHCP server.
In these situations, F239/F239+/SE510 will randomly assign itself an IP address in the 169.254.x.x range. This is specified in RFC3927 "Dynamic Configuration of IPv4 Link-Local Addresses".
You are still able to multicast stream without any problems.
- Is there an SDK or API for the integration and remote management of SE510?
- SE510 uses a web API in HTTP and JSON formats. This is similar to the API used by Facebook and Google. By using this API, you can integrate SE510 management into a central system or application. Changing settings, initiating streaming, and other adjustments are possible from your customized application or server. Contact FAE or a sales representative for web API documentation.
- Why does the video preview in the management interface or NexStream APP not work or have poor quality?
- 1. The laptop, PC, or mobile device may not have enough processing power to handle the video preview. Please switch to another laptop, PC, or mobile device and try again.
2. When the network is congested, the video preview may stutter. Please switch to another network.
3. Refresh the page using your browser's refresh button or in the upper right corner of the NexStream APP.