Connection lost with 3020 and Nikon D3100 + PC/Win10

[marcobee]

Hi,
I flashed the firmware in my new TP-Link 3020 following the very useful post https://dslrdashboard.info/tp-link-mr30 ... wrt-flash/ (obviously making use of the software for 3020, i.e. https://dslrdashboard.info/download/dds ... 0-factory/)

I was able to setup everything. Please note that I am using the PC version (on Windows 10) of dslrdashboard.
I can connect my Nikon D3100 and send commands.
The problem: every time I shoot a photo it loses the connection after having sent the command to the shutter. So I can't download any pic, and it pops up the initial connection box. The same happens after approx 30 secs whatever I am doing or also if i'm idling.
Thus I essentially can't use the app via WiFi.

If, instead, I use direct usb (cable) connection with exactly the same configuration, everything works fine.

I tried to change WiFi channel and to move the router in order to avoid eventual problems caused by surrounding nets, but nothing changed.

Could anyone give some useful advice?

Thanks

[hubaiz]

Add a stronger power source for the MR3020.
I had this problem while using 1A power source, with 2A had no problems

[marcobee]

Hi hubaiz,
thx for the fast reply. Your suggestion sounds feasible. In fact I was using its own AC power adapter which drives 1A (according to the specs).

Then I tried an AI/QC AC adapter I already have, which drives up to 2.4A, but the problem was still there. Maybe disconnections are less frequent, but it always happen after I shot.
I am waiting to receive a USB multimeter to see the effective current (since it is an adaptive device, I cannot be sure of the current it "chose" to drive) but it appears unlikely for the current to be the problem.

Maybe the log could be useful?

[marcobee]

Unfortunately, I must confirm that in my case the problem is not the current from power source: I used a 2A source (AC adapter as well) and the problem is still there.

[marcobee]

I am posting here the system log I have when the connection is lost (giving abrupted shoot captures):

===============
Tue Sep 12 08:39:08 2017 user.info syslog: Incoming client connection
Tue Sep 12 08:39:08 2017 user.info syslog: Awaiting client connection
Tue Sep 12 08:39:08 2017 user.info syslog: USB Devices in
Tue Sep 12 08:39:08 2017 user.info syslog: Number of possible configurations: 1 Device Class: 0 VendorID: 1200, ProductID: 1063
Tue Sep 12 08:39:08 2017 user.info syslog: Number of alternate settings:
Tue Sep 12 08:39:08 2017 user.info syslog: Interface class: 6 Interface number: 0 Number of endpoints: 3
Tue Sep 12 08:39:08 2017 user.info syslog: Found USB imaging device, get vendor and product
Tue Sep 12 08:39:08 2017 user.info syslog: Device Manufacturer: NIKON
Tue Sep 12 08:39:08 2017 user.info syslog: Device Product: NIKON DSC D3100
Tue Sep 12 08:39:08 2017 user.info syslog: Number of possible configurations: 1 Device Class: 9 VendorID: 7531, ProductID: 2
Tue Sep 12 08:39:08 2017 user.info syslog: Number of alternate settings:
Tue Sep 12 08:39:08 2017 user.info syslog: Interface class: 9 Interface number: 0 Number of endpoints: 1
Tue Sep 12 08:39:08 2017 user.info syslog: Imaging USB devices found: 1
Tue Sep 12 08:39:08 2017 user.err syslog: Error reading total packet size: 0
Tue Sep 12 08:39:08 2017 user.err syslog: Stoping client
Tue Sep 12 08:39:08 2017 user.info syslog: Incoming client connection
Tue Sep 12 08:39:08 2017 user.info syslog: Awaiting client connection
Tue Sep 12 08:39:08 2017 user.info syslog: USB Devices in
Tue Sep 12 08:39:08 2017 user.info syslog: Checking device with vendorId: 04b0 and productId: 0427
Tue Sep 12 08:39:08 2017 user.info syslog: Trying to open device
Tue Sep 12 08:39:08 2017 user.info syslog: Number of possible configurations: 1 Device Class: 0 VendorID: 1200, ProductID: 1063
Tue Sep 12 08:39:08 2017 user.info syslog: Number of alternate settings:
Tue Sep 12 08:39:08 2017 user.info syslog: Interface class: 6 Interface number: 0 Number of endpoints: 3
Tue Sep 12 08:39:08 2017 user.info syslog: Found USB imaging device, get vendor and product
Tue Sep 12 08:39:08 2017 user.info syslog: Device open success
Tue Sep 12 08:39:08 2017 user.info syslog: USB device opened
Tue Sep 12 08:39:08 2017 user.info syslog: Read endpoint adress: 129
Tue Sep 12 08:39:08 2017 user.info syslog: Write endpoint adress: 2
Tue Sep 12 08:39:08 2017 user.info syslog: Interrupt endpoint address: 131
Tue Sep 12 08:39:08 2017 user.info syslog: USB interface claimed
Tue Sep 12 08:39:08 2017 user.info syslog: vendor: 1200 product: 1063
Tue Sep 12 08:39:08 2017 user.info syslog: vendor: 45060 product: 9988
Tue Sep 12 08:39:10 2017 user.info syslog: Closing USB device
Tue Sep 12 08:39:23 2017 user.err syslog: Error reading total packet size: -1
Tue Sep 12 08:39:23 2017 user.err syslog: Stoping client
Tue Sep 12 08:39:25 2017 user.info syslog: Closing USB device
Tue Sep 12 08:39:25 2017 user.info syslog: USB interface released

=============
Also, I tried LAN connection between MR3020 and PC (to avoid at all eventual issues due to wi-fi) and the problem stays the same.

[marcobee]

No idea for my problem (that I see is probably not only mine)?