Telnet disconnect and need hard reset
When my Wipy is connected with Wifi in mode VPA, Wipy disconnect after a time maybe the timeout and in my Telnet session receive "Connection closed by foreign host". The only way to restart Telnet is a hard reset on Wipy. Can someone explain and help to resolve this trouble.
Thanks for the extra info. I'll go through a debugging session tomorrow and see what's going on...
Adding some info, even with a higher timeout I experience some issues with Server.
Reconnecting to an FTP session that has been closed or inactive from a while brings this:
ftp 10.25.0.165 Connected to 10.25.0.165. 220 Micropython FTP Server Name (10.25.0.165:gabriele): 331 Password: 230 Remote system type is UNIX. Using binary mode to transfer files. ftp> cd flash/lib 250 ftp> ls 425 502 150
... (timeout to occur)
ftp: Poll timeout waiting before accept 502 421 Service not available, remote server timed out. Connection closed.
During the session, the server is connected, from the TCP PoV:
tcp4 0 0 10.25.0.150.63805 10.25.0.165.ftp ESTABLISHED
And Telnet works; however, a soft re-boot (CTRL-D) doesn't fix the FTP issue, I need to press the reset button.
Thanks for your quick reply. I seems better whith the version 1.8.2 now installed. Another remarks when the trouble happens the heartbit led comes and stay off. I have nothing read in the docs about heartbit state off. Is it a state without significant relation ?
That's interesting. I'll look into it. Thanks!
It happens to me as well, new firmware installed.
Practical experience tells me that changing timeout of telnet server makes the trick, even exceeding server timeout.
server = network.Server()
#Set timeout to 5 minutes
You can include the mod in a boot.py file
Now, this is a workaround, the issue might have to do on how wifi is managed at server level, further investigation would be needed.
@pchirouze The default timeout for Telnet and FTP (when there's no activity) is 120s. But you should be able to connect again without performing a hard reset. Check the Server class for details on how to change the timeout value: