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DCS-960L Triggered FTP JPEG Image Snapshot No Longer Works After Power Cycle

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pab49162:
Hi,

I just bought a DCS-960L webcam and I am seeing a weird problem with the FTP snapshot function.  I have used a similar function on other DLink webcams (DCS-930s and DCS-933Ls) and never had any issues.

I have the DCS-960L webcam configured to take a JPEG image snapshot every 30 seconds and upload that image to an ftp account on a server.  After I set things up and save the settings, the webcam work just fine.  A new image gets uploaded every 30 seconds and is stored in a dated folder, such as 20171218, on the server.  I can also press the Test button on the FTP page and the test image uploads as expected. 

The problem I am seeing is that the snapshot function no longer works after a webcam reboot or power cycle.  However, the Test button on the FTP page still works and uploads the test image.  So I am assuming the ftp info in the saved settings is correct.  In addition, the Event Log shows a "Snapshot trigger by Schedule" event every 30 seconds as expected.

When I look at the System Log after a reboot or power cycle, I can the following which shows the uploads failing:

Nov 2 18:00:20      UPnP start
Nov 2 18:00:28      Network link is recovered, try to run DHCP.
Nov 2 18:00:31      DDP start
Nov 2 18:00:33      Failed to synchronize the time with NTP server.
Nov 2 18:00:36      Ftp-Snapshot: upload /tmp/event/cap20161102_180026D_1.jpg failed: -101
Nov 2 18:00:36      IP address acquire success
Dec 18 14:48:45      Synchronizing the time with NTP server success.
Dec 18 14:48:46      UPnP stop
Dec 18 14:48:52      UPnP start
Dec 18 14:48:53      Synchronizing the time with NTP server success.
Dec 18 14:49:45      Ftp-Snapshot: upload /tmp/event/cap20161102_180036D_1.jpg failed: -101
Dec 18 14:50:45      Ftp-Snapshot: upload /tmp/event/cap20171218_144847D_1.jpg failed: -101

Dec 18 15:09:47      Ftp-Snapshot: upload /tmp/event/cap20171218_145819D_1.jpg failed: -101
Dec 18 15:10:48      Ftp-Snapshot: upload /tmp/event/cap20171218_145848D_1.jpg failed: -101
Dec 18 15:11:18      Ftp and EMail task queue over count, skip upload file
Dec 18 15:11:48      Ftp-Snapshot: upload /tmp/event/cap20171218_145918D_1.jpg failed: -101
Dec 18 15:12:18      Ftp and EMail task queue over count, skip upload file
Dec 18 15:12:48      Ftp-Snapshot: upload /tmp/event/cap20171218_145949D_1.jpg failed: -101
Dec 18 15:13:18      Ftp and EMail task queue over count, skip upload file


After messing around with this for a while, I believe the problem has something to do with the resolution of the FTP Host Name.  If I specify an ftp hostname like ftp.mydomain.com, the snapshot function no longer works after a reboot of the webcam.  (But as I mentioned earlier, the Test button on the FTP page still works.)  However, if I use the ip address of the ftp server, both the snapshot function & Test Button still work after a reboot.

I tried 3 different versions of firmware and the behavior is identical in all of them.

Any ideas or suggestions would be appreciated.

Thanks, Paul

FurryNutz:
Link>Welcome!


* What Hardware version is your DCS? Look at the sticker behind or under the camera.
* Link>What Firmware version is currently loaded? Found on the DCSs web page under status.
* What region are you located?
What Mfr and model is the main host router?

As a work around solution, can you keep the IP address of the FTP server instead of using the domain string?

pab49162:
Hi FurryNutz,

Thanks for the quick reply.

The hardware version of the webcam is A1.  I have tried 3 different firmware loads - 1.03.B05, 1.04.02 and 1.06.01 Beta.  All 3 versions exhibit the same issue.  My region is USA.

My main router is a NetGear WNDR3800 with Firmware Version V1.0.0.52.  (I have several other routers and may try connecting to a different one tomorrow to see if that makes any difference.)

As far as a workaround, I could continuing using the IP of the FTP Server.  However, I would prefer to use the server name in the event the webhost moves this hosting account to a different server.  This webcam is going to remotely located and changing the FTP IP remotely could be a challenge.

Thanks, Paul
 



pab49162:
One quick update - I connected the another route directly to my cable modem today and then wirelessly connected the webcam to that route.  I then repeated the previous sequence using both an ftp hostname and ip address as the FTP Host Name.

Unfortunately, I got the identical results as I did with my primary router.  After a webcam reboot or power cycle, the snapshot function no longer works if I use an ftp hostname.  However, it does work correctly if I specify an ip address for the ftp server.  As before, the Test button on the FTP page works and correctly uploads the test image in both cases -- an ftp hostname or ip address specified for the ftp server.

I have also contained DLink technical support about this issue.  It has been escalated to the senior analysts and one is suppose to call me back when available.   

Paul

FurryNutz:
Keep us posted on how it goes.  ;)

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