ProScan: SDS100 Will not resume / re-connect to ProScan after a reboot.

rodentkj

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New to both ProScan and the SDS100.
Have been running two BC246T scanners remotely for 15 years.


As the title says, when I reboot my laptop the connection to ProScan is broken and it will not reconnect. This is a no-go if one wants manage the scanner remotely.
Said issue was brought up in THIS thread where the author of ProScan acknowledges the issue. And reports the root cause is in Uniden's wheelhouse (driver issue).
Only workaround is to cycle power on the SDS100 to recover. Which is not possible to execute remotely.

Knowing what the root cause is, I troubleshooted this for a few hours. Even going as far as building a data only mini USB cable.
However because the SDS100 requires the power button to be pressed to power on, none of my tricks would work.
With all that said I believe I found a viable work around.

In ProScan, commands can be sent to the attached scanner via the Test & Extras tab. (see screenshot)
Using the Protocol Command field I issue the MSM,60 (see screenshot).
This will force the scanner in to Mass Storage mode for 60 seconds. It then will return back to Serial mode after the 60 second period.
Side Note: I use this command so I can remotely put the scanner in Mass Storage mode, program it and then resume scanning. I usually use a value of 300 to ensure I have enough time to complete the programming process before it returns to serial mode.

1. Issue the above command, MSM,60 to the SDS100 scanner.
2. Reboot the Laptop.
When the laptop comes back up, Windows auto starts ProScan and it connects fine to the scanner.

Note: YMMV. 60 seconds works in my case. I tried 20 seconds and that did not work. Longer values may be needed for different scenarios, For example if Windows updates during a reboot. I turned off automatic reboot after updates to avoid losing connection to the scanner.

@ProScan
It would be great if you could implement something into ProScan that would allow a user to force this this command to the scanner when ProScan is shutdown.

ProScan.jpg
 
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K4EET

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Hi @rodentkj. Question for you as I do not have a Uniden SDS series scanner (yet) to test this. If one does get a Microsoft Windows update during the reboot cycle of the computer using the MSM,60 command to the scanner and ProScan does not reconnect, can you simply send the MSM,60 command again and reboot the computer a second time to get ProScan to reconnect? I’m going to guess that would be possible in this remote access scenario. Thanks!
 

jtwalker

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Hi @rodentkj. Question for you as I do not have a Uniden SDS series scanner (yet) to test this. If one does get a Microsoft Windows update during the reboot cycle of the computer using the MSM,60 command to the scanner and ProScan does not reconnect, can you simply send the MSM,60 command again and reboot the computer a second time to get ProScan to reconnect? I’m going to guess that would be possible in this remote access scenario. Thanks!
No, if ProScan isn’t connected to scanner it can’t send an MSM command.
 

rodentkj

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Hi @rodentkj. Question for you as I do not have a Uniden SDS series scanner (yet) to test this. If one does get a Microsoft Windows update during the reboot cycle of the computer using the MSM,60 command to the scanner and ProScan does not reconnect, can you simply send the MSM,60 command again and reboot the computer a second time to get ProScan to reconnect? I’m going to guess that would be possible in this remote access scenario. Thanks!
As @jtwalker says above. If you lose connection you can't issue the command. A physical power cycle of the scanner would need to happen.
I just figured this out a few hours ago.
Testing will take a few weeks to run across all the scenarios.

The safe bet is don't reboot with updates pending unless you are physically at the hardware.
 

rodentkj

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And just like that, I forgot to send the command to the scanner prior to rebooting the connected laptop remotely.
Locked out :cry:
I knew I would do this at least one time. Likely not the last.
 

ProScan

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Note: YMMV. 60 seconds works in my case. I tried 20 seconds and that did not work. Longer values may be needed for different scenarios, For example if Windows updates during a reboot. I turned off automatic reboot after updates to avoid losing connection to the scanner.
It depends on the size of the FL (Favorites Lists) in the scanner or computer depending if reading or writting. A larger value is needed if the FL is larger.

@ProScan
It would be great if you could implement something into ProScan that would allow a user to force this this command to the scanner when ProScan is shutdown.
It could be implemented as an option such as an option that looks like this [X] "Send MSM Command to Scanner" Seconds 60 . It wouldn't be fool proof and it could create more problems than it's worth. Such as adding new FL or systems to an existing FL. You may not remember to increase the value in the options when adding. As a result, the scanner will reboot when reading or writing. Also, the problem with the serial port comms will happen when ProScan is not running, therefore ProScan can't send the MSM command. But if you have a suggestion: see this link.
Bug Reporting and Suggestions

My theory on why the scanner needs a reboot is the UART chip is getting the power from the USB and not the scanner. I haven't tried this but perhaps a USB powered hub may solve the problem. So if the computer reboots, the power from the USB should stay up.
 

N5ZKK

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I fight this all the time on my SDS200. For the USB port I have an on/off switch and most of the time cycling the USB power will restore a lost connection or is needed after downloading to the sdcard.

Of course this is a hardwired switch but I would guess that there is a remote solution to power cycle the USB power power to the scanner.
 

rodentkj

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For the USB port I have an on/off switch

Could you elaborate on this?

I went looking for some type of wifi connected device to cycle power on a USB port.
Could not come up with anything.
Again. Looking for a solution I can control remotely.
 

rodentkj

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Could you make a data only cable for the mini port and power the unit from the micro port? That way you could power cycle it via the micro.
Thought about that and already went down that road. From the OP "Even going as far as building a data only mini USB cable."
This won't work because the SDS100 requires one to press and hold the power button to power it back on.
Unlike the SDS200 which has that mechanical rotary knob to power it on and off.
 

N5ZKK

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Could you elaborate on this?

I went looking for some type of wifi connected device to cycle power on a USB port.
Could not come up with anything.
Again. Looking for a solution I can control remotely.
USB Hub with on/off switches. After a download with Proscan I cycle the power to the SDS200 USB port with the blue switch. This is the SABRENT 4-Port USB 3.0 Hub with Individual LED Power Switches and like I said this is a hardwired switch but I would guess that there is a remote solution to power cycle the USB power power to the scanner.
 

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KevinC

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Thought about that and already went down that road. From the OP "Even going as far as building a data only mini USB cable."
This won't work because the SDS100 requires one to press and hold the power button to power it back on.
Unlike the SDS200 which has that mechanical rotary knob to power it on and off.
I see that now. Sorry.
 

rodentkj

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USB Hub with on/off switches. After a download with Proscan I cycle the power to the SDS200 USB port with the blue switch. This is the SABRENT 4-Port USB 3.0 Hub with Individual LED Power Switches and like I said this is a hardwired switch but I would guess that there is a remote solution to power cycle the USB power power to the scanner.
Thanks.
If I had the SDS200 this would all be a moot point. Because a simple wifi enabled AC switch would resolve the issue.
I now question my decision to get the SDS100.
 
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rodentkj

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I have come to the conclusion that power cycling the scanner remotely is not going to work in any scenario.
As for it's not possible to remotely power it back on.
 

bearcatrp

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What version of windows is proscan running on? I am using win10. Found that when an update is triggered for windows, it nukes proscan. Never did than when I was using win7 pro. Have tried to stop updates until I request it but can not in win10. Can do it in win7. I don’t stream so can’t help you with the other issues.
 
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