Fail to receive image on server, Works well on local machine

[alter-sachin]

Hi ! This is not an issue related to your implementation. I am looking to connect frames from my Picam to a google cloud based compute engine GPU

client running on pi : `import socket import time from imutils.video import VideoStream import imagezmq

sender = imagezmq.ImageSender(connect_to='tcp://192.168.0.254:5555') #for local machine, this works for me. sender = imagezmq.ImageSender(connect_to='tcp://GPU_IP:9090') #for the GPU , this does not receive frames.. rpi_name = socket.gethostname() # send RPi hostname with each image picam = VideoStream(usePiCamera=True).start() time.sleep(2.0) # allow camera sensor to warm up while True: # send images as stream until Ctrl-C image = picam.read() sender.send_image(rpi_name, image)`

Server receiving frames on local machine & GPU have the same snippet running.

`import cv2 import imagezmq image_hub = imagezmq.ImageHub() i = 0 while True: # show streamed images until Ctrl-C i = i +1 rpi_name, image = image_hub.recv_image()

cv2.imshow(rpi_name, image) # 1 window for each RPi

#cv2.waitKey(1)
#img = cv2.imread(image,0)
cv2.imwrite("hello.png",image)
image_hub.send_reply(b'OK')`

The server does not seem to receive the frames even though the local machine does receive the same frames.

I have checked that the ports are opened on the server side. Is there someway I could debug this issue ? I am using an office internet. Would like to know your thoughts on how this could be debugged.... Thanks for your hard work with this repo :+1:

[alter-sachin]

Server by default listens only at 5555. opened 5555 at the gpu end and works well. thanks

[jeffbass]

@alter-sachin Glad you resolved the issue! I will use your issue to help me improve the documentation of imagzmq. Thanks for using it and helping me improve it.