When I did week 1 exercise, I got the connection error as the image below.
I used WSL 2 environment with docker. I successfully installed image and ran container of docker hub. But when I ran this line of code I got a connection error and I checked that the connection was still normal.
Any suggestion about that?
Thanks in advance.
Hi cuongvo
first of all welcome to our community.
If I undertood, you have successfully ping the remote repository. Right?
Just now I have tried to run the docker in my testbed by sudo and it worked fine.
Have you tried to run the docker image by sudo?
sudo docker run -it --rm -p 8888:8888 -p 8000:8000 --mount type=bind,source="$(pwd)",target=/home/jovyan/work deeplearningai/mlepc1w1-ugl:jupyternb
Cheers 
Sorry cuongvo
just now I have realized that you are trying to run the docker from windows, not from linux.
I guess that my advice is not helpful.
Let me check if I can run the Docker desktop and WSL2.
Regards
So far I have been able to setup the Docker desktop and WSL. Now I’m facing a problem when importing cvlib, but this is before the problem you have.
In the meantime can you check that
pip install -r requirements.txt
worked fine in your Linux environment?
Regards
I have already reproduced the code by 2 cases on WSL2 environment:
pip install -r requirements.txt but I sill got a connection error.It seems that the connection error comes from the network connects between WSL2 and Docker image.
I am still installing Ubuntu Server to check this issue.
Regards.
I have switched to Ubuntu server and run successfully the code with docker engine.
There is no connection error when I run the code.
I strongly believe that the issue is coming from the network connection between WSL2 and Docker image.
But I’m wondering how to fix this issue on WSL2. 
Regards.
I’m still struggling to properly setup my docker image and WSL2. Hope to be able to reproduce your issue.
Regards
Hi cuongvo
Please double check the Docker Desktop Settings. There is a ‘network’ section.
These are my settings (default).
Double check also the WSL Integration:
Thank you so much @fabioantonini , I have solved the issue by your instruction.
Wow! Great!!
Happy to help
Hi, @fabioantonini.
I have the exact same problem, but making my settings match yours doesn’t help me.
Is there anything else I should try?
P.S.
I’m using the 18.04 version of ubuntu instead of 20.04 - but I don’t think that should make any difference.
Hi @Jacob
welcome to Discourse!
What kind of problem do you have? DO you receive any error message?
Best regards
Same exact problem as that described by cuongvo.
Here’s my screenshot - but it’s basically the same.
Can you share the Docker settings?
Can you ping 8.8.8.8 from the docker image?
BR
The network/WSL Integration settings are what you posted in this thread - except I’m using Ubuntu 18.04 instead of 20.4
Any other settings?
How do I ping from the docker image? The ubuntu prompt just shows the jupyter notebook stream.
I did some testing from a notebook, and this is what I got:
Can you share the ‘WSL INTEGRATION’ window?
When you run the ubuntu 18.04 docker image you should have access to a shell.
From there you can use the ping command:
$ ping 8.8.8.8
ping 8.8.8.8 (8.8.8.8) 56(84) bytes of data.
64 bytes from 8.8.8.8: icmp_seq=1 ttl=115 time=28.7 ms
64 bytes from 8.8.8.8: icmp_seq=2 ttl=115 time=27.2 ms
here’s the integration window:
I don’t seem able to use the shell - because jupyter-lab is running in there.
Ok, I understand
before running the docker image,
(docker run -it --rm -p 8888:8888 -p 8000:8000 --mount type=bind,source="$(pwd)",target=/home/jovyan/work deeplearningai/mlepc1w1-ugl:jupyternb)
please run
$ ping 8.8.8.8
we need to understand if Ubuntu 18.04 has internet access
Got it!
So your ubuntu-18.04 has internet access.
Anyway when you run the docker image it doesn’t.
Please can you show all the messages shown when you run the docker image?
From the previous windows I can see only few traces
