When I try to connect m300 RTK with custom RTK network it shows "RTK connected. RTK data converging" as the RTK status. it takes around 1 hour to fix the RTK and change the RTK status to "RTK Connected". Then I tried with D-RTK 2, but still, the results are the same.But when I try to connect Phantom 4 RTK and Phantom Multispectral with the same custom RTK network and D-RTK 2 unit, it fixes the RTK within few seconds. Does anyone have an idea of what I need to do?

Did you ever find a fix for this? Having the same issue

I Have the same issue!

And also for the M210 RTK. it says "RTK connected, RTK data not in use"  Does anyone know how to fix it for the M210 RTK?  

Just following this up as I have been haivng the same problem, trying to use custom network RTK with a M210v2 RTK. Looking at the EXIF data it is saying RTK-mode 16 (single?) and the standard deviations in RTK position are a couple of metres. I am trying to fly in manual mode.

Any solutions?

No, I haven't found any solution for that. As I have identified there is a manufacturing defect in the RTK antenna of the first lot of M300 RTK. (demo units)
I'm not sure about this and I have decided that because most of the M300 RTK demo units are having the same issue.

Any update on this? I'm having the same issue as OP.

I am also having the same issue with the M300 RTK and our private custom Network.  Has anyone found a solution?  The first time we used the M300, it connected right away and worked perfectly.  After that, there was a firmware update, and now when we try to connect we get the "RTK Connected. RTK data converging".  We only let it sit for 15 minutes so I don't know if it eventually connects.  We tried a number of configurations including CMR, CMR+ and RTCM with the same result.

DJI SPARK - Hi, I had a problem. During the flight I received interference message on DJI GO4 and changed the flight mode to ATTI so the aircraft started to move by itself. I no longer had control over her. The find my drone indicates its last coordinate in a forest, but I didn't find it.
Is the last coordinate when the aircraft disconnects from the radio or when the aircraft shuts down?
Is it possible that he disconnected and continued to fly?
Thanks, I look forward to your help.
              Wilson

SMarien Posted at 7-19 06:59
I am also having the same issue with the M300 RTK and our private custom Network.  Has anyone found a solution?  The first time we used the M300, it connected right away and worked perfectly.  After that, there was a firmware update, and now when we try to connect we get the "RTK Connected. RTK data converging".  We only let it sit for 15 minutes so I don't know if it eventually connects.  We tried a number of configurations including CMR, CMR+ and RTCM with the same result.

Hi @SMarien, were you able to find the solution? I am encountering the same error. Can tips on how to resolve this? I am using Matrice 300 with RTK base station.

Thank you very much.

This is incredibly irritating. Turned up for a survey job and same issue. I was highly embarrassed in front of the client.  I am flying off the marks I laid out three days ago. All worked fine then.
The base station is giving three greens which suggests that it has a fix. It is the M300 software that is confounded.   Does anyone have an answer?  DJI?   
Using:
M300. 2.04.0102
Controller 02.04.0103
Pilot 2.4.1.7

I have the same issue with M2EA RTK.  1 hour to fix, reboot and all data lost...

I also have the same issue with M2EA RTK...

Having the same problem. I have noticed that if I turn off RTK, and then over drone around 50 feet, it connects RTK within 5 minutes or so. At first I was waiting around 20 minutes with the drone on the ground. Try hovering and see if that reduces the wait time for RTK corrections
-RAR