Rflink TCP mode does not reconnect after successful connection

[adrianmihalko]

Home Assistant release with the issue:

0.92.0

Last working Home Assistant release (if known):

Operating environment (Hass.io/Docker/Windows/etc.):

Hass.io/Linux

Component/platform:

https://www.home-assistant.io/components/rflink/

Description of problem:

HA does not reconnect in TCP mode, after successfull connection was made. It should periodically check connection, to check if remote side is available.

My setup:

Rflink on Arduino connected to ESP8266 running Esp-Link (for TCP mode as in the component description).

1. I start with Rflink device OFF:

2019-04-30 23:14:37 INFO (MainThread) [homeassistant.components.rflink] Initiating Rflink connection
2019-04-30 23:14:40 ERROR (MainThread) [homeassistant.components.rflink] Error connecting to Rflink, reconnecting in 10
Traceback (most recent call last):
  File "/usr/local/lib/python3.7/site-packages/homeassistant/components/rflink/__init__.py", line 221, in connect
    transport, protocol = await connection
  File "uvloop/loop.pyx", line 1904, in create_connection
  File "uvloop/loop.pyx", line 1883, in uvloop.loop.Loop.create_connection
OSError: [Errno 113] Host is unreachable
2019-04-30 23:14:50 WARNING (MainThread) [homeassistant.components.rflink] disconnected from Rflink, reconnecting
2019-04-30 23:14:50 INFO (MainThread) [homeassistant.components.rflink] Initiating Rflink connection
2019-04-30 23:14:53 ERROR (MainThread) [homeassistant.components.rflink] Error connecting to Rflink, reconnecting in 10
Traceback (most recent call last):
  File "/usr/local/lib/python3.7/site-packages/homeassistant/components/rflink/__init__.py", line 221, in connect
    transport, protocol = await connection
  File "uvloop/loop.pyx", line 1904, in create_connection
  File "uvloop/loop.pyx", line 1883, in uvloop.loop.Loop.create_connection
OSError: [Errno 113] Host is unreachable

Correct, until it is not available it tries to connect every 10 sec.

2. I plug in Rflink device:

2019-04-30 23:15:29 INFO (MainThread) [homeassistant.components.rflink] Initiating Rflink connection
2019-04-30 23:15:29 DEBUG (MainThread) [rflink.protocol] connected
2019-04-30 23:15:29 INFO (MainThread) [homeassistant.components.rflink] Connected to Rflink
2019-04-30 23:15:46 DEBUG (MainThread) [rflink.protocol] received data: 20;00;Nodo RadioFrequencyLink - RFLink Gateway V1.1 - R48;

It is connected and received data.

Now, when for some reason connection is broken, or If I turn off Rflink device, HA does not check connection and never tries to reconnect, which means I must restart HA to restart connection to Rflink device.

Expected behavior:

After connection is broken, HA should check for connection based on interval reconnect_interval, if it is broken, try to reconnect.

Maybe reconnect_interval is only valid for local connections /dev/usb?

Problem-relevant configuration.yaml entries and (fill out even if it seems unimportant):

Traceback (if applicable):

Additional information:

[KennieNL]

I think I've used to have this issue, but I use the following socat now which makes it reconnect when the connection is down:
socat pty,link=/config/serialport-rflink,echo=0 tcp:x.x.x.x:xxxx,forever,reuseaddr,keepalive,keepidle=10,keepintvl=10,keepcnt=2

[genestealer]

I found that the reconnect interval works fine for my identical set up. I appreciate this doesn't really help your situation but I thought it would be useful to know. ESP-Link to Arduino.

[stale]

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