Network connection causing SDS200 to go deaf.

[reedcom]

I am having problems with my SDS200 going completely deaf after 18 to 24 hours of being on. The problem is something with the network connection. If the network cable is unplugged from the SDS and it is restarted. It will run continually for over a week with no problems. If I plug the network cable back in the SDS has audio for less than a day. I am running ProScan. I installed ProScan on a 2nd PC on my network. The SDS does the same after 18 to 24 hours, it is deaf. I can see the SDS stops on a channel on then display and the history in ProScan shows the SDS stopped on frequencies, but there is no audio from the SDS. I also tried a Weather search when it goes deaf, there is no audio either. The search will stop on frequency but no audio until rebooted. I have checked it with a 2nd scanner with the same frequencies to verify there is audio on the frequency when the SDS has no audio.

I have had the SDS for about 2 months. The SDS has been on my network and I have been running ProScan since I received the SDS. The audio issue started about 2 weeks ago. Nothing with the SDS or my network has changed in the last 2 months.

 

[donc13]

What version of Proscan?

In ProScan's "What's new" section is this note:

Version 17.5
Added - BCD536HP & SDS200 LAN - Option "Show Popup Message if Detected Loss of LAN Audio After 30 Seconds". Option to turn on & off located in the URL Setup dialog window.
Added - BCD536HP & SDS200 LAN - Option "Restart Scanner Upon Loss of LAN Audio After 5 Minutes". Option located in the URL Setup dialog window.
Fixed - BCD536HP & SDS200 LAN - Latency increased over time when using the Loopback function.


The above seems to me there was a bug in the audio over LAN

 

[reedcom]

I am running ver 17.8. Now that you say that, it may have updated. Looking at my files I have 17.6, 17.7 & 17.8. From the dates of the files my system was probably setup with 17.7. I may try to install a earlier version of ProScan to see what happens. I have ProScan running on a pc without a monitor. I remote into it when I want to look ProScan, so I do not look at it everyday. Thank you for the info.

 

[ProScan]

reedcom, When you say "no audio". Is that no audio out of the scanner speaker or you have audio out of the speaker, just no audio out of the scanner Ethernet connection? If no audio out of the speaker then perhaps it could be the SD Card. If audio out of the speaker but no audio out of the Ethernet connection then it could be the Ethernet cable or connectors from the scanner to the router or Ethernet switch.

ProScan doesn't update versions automatically so if you haven't updated in 2 weeks (when the problem started) then it should be the same version.

Those options have to do with if there is a Wi-Fi audio connection problem then it will be detected and the scanner reboots and they have nothing to do with the actual scanner Wi-Fi to ProScan connectivity.

 

[ProScan]

The above seems to me there was a bug in the audio over LAN

What is your reasoning?

 

[reedcom]

Network is hard cable not Wi-Fi to SDS. I have no audio from the SDS speaker or ProScan software on the pc until the SDS is rebooted. If the network cable is left connected I will have audio from both the SDS speaker and the ProScan software for less than 24 hrs. If the SDS is rebooted and the network is unplugged I got 7 days of audio from the SDS. I reconnected the network cable the SDS and only had Audio from both until the next day. I rebooted SDS audio returned. I have removed 17.8 and installed 17.6. I will see if I still have audio on the SDS this time tomorrow.

 

[ProScan]

Network is hard cable not Wi-Fi to SDS. I have no audio from the SDS speaker or ProScan software on the pc until the SDS is rebooted. If the network cable is left connected I will have audio from both the SDS speaker and the ProScan software for less than 24 hrs. If the SDS is rebooted and the network is unplugged I got 7 days of audio from the SDS. I reconnected the network cable the SDS and only had Audio from both until the next day. I rebooted SDS audio returned. I have removed 17.8 and installed 17.6. I will see if I still have audio on the SDS this time tomorrow.

I meant the options are for Wi-Fi (on the BCD536HP) and Ethernet (SDS200).

I see, no audio out of the scanner speaker. It could be the SD Card going bad as they are known for all kinds of strange problems.

 

[ProScan]

I will see if I still have audio on the SDS this time tomorrow.

If you do not have audio out of the scanner speaker then the first thing I would check is the scanner display volume if it is V : 0 (image showing the location).

 

[belvdr]

A simple way to isolate the software or the scanner is to shutdown ProScan and reboot the scanner with the Ethernet plugged in. Let it run and see if the issue occurs.

For what it's worth, I haven't seen this with ProScan 17.8 and the latest 200 firmware.

 

[donc13]

What is your reasoning?

We'll, your note talks about loss of audio over LAN. You didn't say WiFi so my presumption was a difficulty was noted and a reboot done. In other words, others also noted loss of audio.

 

[ProScan]

We'll, your note talks about loss of audio over LAN. You didn't say WiFi so my presumption was a difficulty was noted and a reboot done. In other words, others also noted loss of audio.

LAN includes WiFi & Ethernet. The options has nothing to do with the actual scanner LAN to ProScan connectivity. They just monitor the connectivity and reboots the scanner if needed if the option is on.

 

[donc13]

LAN includes WiFi & Ethernet. The options has nothing to do with the actual scanner LAN to ProScan connectivity. They just monitor the connectivity and reboots the scanner if needed if the option is on.

And why would you add that feature to monitor audio and reboot if missing for X amount of time if there wasn't an issue with that? I am NOT saying it was a bug in ProScan, but it's a bug somewhere.

 

[ProScan]

And why would you add that feature to monitor audio and reboot if missing for X amount of time if there wasn't an issue with that? I am NOT saying it was a bug in ProScan, but it's a bug somewhere.

Good question. The scanner firmware RTSP (Real Time Streaming Protocol) module is finicky. If the computer shuts down abruptly due to a power failure or the Ethernet connection breaks or is intermittent, the RTSP module may not receive the TEARDOWN command from the client software (ProScan) and the RTSP module stops communicating. The only way to restore the RTSP communications is a scanner power cycle. Uniden could have implemented a watchdog timer to reset the RTSP module but they didn't so ProScan does.

{edit} Also, The user is experiencing loss of audio out of the scanner speaker. I don't think it's possible for any software to cause the scanner speaker to lose audio. The only exception is muting the scanner speaker using the scanner protocol VOL command but the VOL command doesn't control the LAN audio level.

 

[ProScan]

[deleted]

 

[donc13]

Good question. The scanner firmware RTSP (Real Time Streaming Protocol) module is finicky. If the computer shuts down abruptly due to a power failure or the Ethernet connection breaks or is intermittent, the RTSP module may not receive the TEARDOWN command from the client software (ProScan) and the RTSP module stops communicating. The only way to restore the RTSP communications is a scanner power cycle. Uniden could have implemented a watchdog timer to reset the RTSP module but they didn't so ProScan does.

{edit} Also, The user is experiencing loss of audio out of the scanner speaker. I don't think it's possible for any software to cause the scanner speaker to lose audio. The only exception is muting the scanner speaker using the scanner protocol VOL command but the VOL command doesn't control the LAN audio level.

Good Answer

 

[reedcom]

I uninstalled ProScan 17.8 and installed 17.6. I have been running for 48 hours without losing audio from the SDS speaker or ProScan. I had several time when I had to reboot the SDS to get audio back. I had a 7 day period with the network cable unplugged that the SDS did not have to be rebooted. After the 7 days I reconnected the cable to try to troubleshoot (someone will ask) the issue. Thank you to donc13 for the info on the software.

 

[ProScan]

I uninstalled ProScan 17.8 and installed 17.6. I have been running for 48 hours without losing audio from the SDS speaker or ProScan. I had several time when I had to reboot the SDS to get audio back. I had a 7 day period with the network cable unplugged that the SDS did not have to be rebooted. After the 7 days I reconnected the cable to try to troubleshoot (someone will ask) the issue. Thank you to donc13 for the info on the software.

If you ever do lose audio with the version running now (17.6), can you check the V:xyz in the display to see if it's V:0. If you can later go back to 17.8 to test and if you do loss audio , check the V:xyy.
I just checked the source code comparing the RTSP code 17.6 and 17.8 and no difference. I don't see how any 3rd party software can mute the scanner speaker other then changing the volume level through the protocol.

 

[reedcom]

If you ever do lose audio with the version running now (17.6), can you check the V:xyz in the display to see if it's V:0. If you can later go back to 17.8 to test and if you do loss audio , check the V:xyy.
I just checked the source code comparing the RTSP code 17.6 and 17.8 and no difference. I don't see how any 3rd party software can mute the scanner speaker other then changing the volume level through the protocol.

I still have not had any audio trouble since I rolled back to 17.6. I am curious to try 17.8 to see if it happens again. When do I will check volume number setting if I loss audio. I don't remember looking at that when I was having trouble. I was going to let 17.6 run a couple more days to make sure I don't have an issue. I will get back to you in a few days to let you how what I find out.

 

[reedcom]

Sunday the 9/5. I update the ProScan back to 17.8. Within 24 hours the SDS200 went deaf again. The volume display still shows 7 which is were it stays. None let me get into deaf in a little more detail the SDS200 does not receive anything at all. It does not stop on any programmed channels at all. If I use weather scan it will stop on the frequencies in in my area but the is no audio the volume display still set to 7. This is from ProScan remote feed on and out side my home network also out of the SDS200 speaker. If the SDS200 is rebooted it pick up just fine for right at 24 hours then it stop hearing or stopping on anything until the SDS200 is rebooted. It has done this 4 days in a row at right at 24 hours. I ran for 12 days with version 17.6 with no issues. I have now uninstalled 17.8 completely and installed 17.6

 

[belvdr]

Is your 200 updated on firmware? Another thing to try is to disable all remote feeds, webserver, etc. Just have ProScan connect to the scanner for audio and tracking. Let's start there and see if we can find what is causing it.

For what it's worth, I use ProScan mainly for recording, history tracking, and editing my favorites with my 200. I haven't seen this issue yet.