RPI disconnects

[ebolisa]

Raspberry pi (any) with ethernet connection.

The code works fine for few minutes then disconnects with no errors.
Tried to set up line 'blynk = BlynkLib.Blynk(BLYNK_AUTH)' to 'blynk = BlynkLib.Blynk(BLYNK_AUTH, insecure= True)' but I get error: AttributeError: 'socket' object has no attribute 'write'

The option 'insecure=True' works fine on ESP32s however.

Any ideas?
TIA

[Judas2016]

I am having the same problem on MacOS.
./manual_tests/test_blynkV2.py::BlynkPublisherTest::test_pushvalue Failed with Error: 'socket' object has no attribute 'write'
File "/Library/Developer/CommandLineTools/Library/Frameworks/Python3.framework/Versions/3.7/lib/python3.7/unittest/case.py", line 59, in testPartExecutor
yield
File "/Library/Developer/CommandLineTools/Library/Frameworks/Python3.framework/Versions/3.7/lib/python3.7/unittest/case.py", line 615, in run
testMethod()
File "/Users/jeff/GitHub/wiab/tests/manual_tests/test_blynkV2.py", line 28, in test_pushvalue
blynk = BlynkLib.Blynk(BLYNK_AUTH_TOKEN, insecure=True)
File "/Users/jeff/GitHub/wiab/.env/lib/python3.7/site-packages/BlynkLib.py", line 214, in init
BlynkProtocol.init(self, auth, **kwargs)
File "/Users/jeff/GitHub/wiab/.env/lib/python3.7/site-packages/BlynkLib.py", line 81, in init
self.connect()
File "/Users/jeff/GitHub/wiab/.env/lib/python3.7/site-packages/BlynkLib.py", line 245, in connect
BlynkProtocol.connect(self)
File "/Users/jeff/GitHub/wiab/.env/lib/python3.7/site-packages/BlynkLib.py", line 125, in connect
self._send(MSG_HW_LOGIN, self.auth)
File "/Users/jeff/GitHub/wiab/.env/lib/python3.7/site-packages/BlynkLib.py", line 117, in _send
self._write(msg)
File "/Users/jeff/GitHub/wiab/.env/lib/python3.7/site-packages/BlynkLib.py", line 249, in _write
self.conn.write(data)
AttributeError: 'socket' object has no attribute 'write'

[ebolisa]

@Judas2016 It's not OS related but library. It appears to be a timing problem between the client and server.

[Judas2016]

Did you have any luck in getting it to work with SSL?

[ebolisa]

Only with ESP not with Raspberry

[Judas2016]

I got SSL working on macOS and the library works as expected now. I updated the version of Python to latest 3.9 from 3.7 and solved the problem.

[jonathongardner]

Im noticing the same issue with my RPI disconnecting.

It looks like when the socket tries to read here (and there's no data) you get a timeout so this line doesn't get called for a while. Then when it eventually does get called depending on how long its been these lines get called and it disconnects.

Not sure if this is a bug in the code or if the conn.read is expecting the blynk server to send data/heartbeat. I honestly just removed those two lines (136-137) and my RPI stoped disconnecting and the project has been working.

If this is a bug in the code than I'm sure there is a more elegant way to fix this

[ebolisa]

@jonathongardner Interesting! Which server are you using? The central or the assigned one? In my case, the connection works better with the assigned one being it lon1 or fran1.

[jonathongardner]

Yeah I'm just using the default one in the package