- No response from printer after 3 consecutive communication timeouts, considering it dead

What is the problem?
when i want to heat the hotend after 210 degrees or somewhat it gives error and says "- No response from printer after 3 consecutive communication timeouts, considering it dead."
What did you already try to solve it?
switch power supply
swith to another raspberry
put tape on 5v pin

Logs (syslog, dmesg, ... no logs, no support)
2020-07-03 19:07:36,049 - octoprint.plugins.pluginmanager - INFO - Loaded notice data from disk, was still valid
2020-07-03 19:07:37,846 - octoprint.plugins.pluginmanager - INFO - Loaded notice data from disk, was still valid
2020-07-03 19:07:37,902 - octoprint.util.pip - INFO - Using "/home/pi/oprint/bin/python2 -m pip" as command to invoke pip
2020-07-03 19:10:54,158 - octoprint.util.pip - INFO - pip installs to /home/pi/oprint/lib/python2.7/site-packages/ (writable -> yes), --user flag needed -> no, virtual env -> yes
2020-07-03 19:10:54,159 - octoprint.util.pip - INFO - ==> pip ok -> yes
2020-07-03 19:10:54,284 - octoprint.plugins.softwareupdate - INFO - Saved version cache to disk
2020-07-03 19:10:54,303 - octoprint.plugins.bedlevelvisualizer - INFO - OctoPrint-BedLevelVisualizer loaded!
2020-07-03 19:10:54,313 - octoprint.plugins.themeify - INFO - Themeify initialized.
2020-07-03 19:10:54,723 - octoprint.server.preemptive_cache - INFO - Preemptively caching / (ui _default) for {'query_string': 'l10n=en', 'path': '/', 'base_url': 'http://192.168.1.12/'}
2020-07-03 19:10:54,774 - octoprint.plugins.tracking - INFO - Sent tracking event ping, payload: {'octoprint_uptime': 24}
2020-07-03 19:10:55,197 - octoprint.plugins.tracking - INFO - Sent tracking event pong, payload: {'plugins': u'firmwareupdater:1.7.0,bltouch:0.3.3,taborder:0.5.8,themeify:1.2.2,touchui:0.3.14,z_probe_offset:0.3,bedlevelvisualizer:0.1.13,simpleemergencystop:1.0.1,multilineterminal:0.1.3,navbartemp:0.14,widescreen:0.1.2,preheat:0.5.1'}
2020-07-03 19:10:55,569 - octoprint.plugins.tracking - INFO - Sent tracking event startup, payload: {'python': '2.7.16', 'ram': 917016576, u'octopi_version': u'0.17.0', 'version': u'1.4.0', 'pip': '19.3.1', 'cores': 4, 'freq': 1200.0, u'pi_model': u'Raspberry Pi 3 Model B Rev 1.2', 'os': 'linux'}
2020-07-03 19:11:13,399 - octoprint.server.util.sockjs - INFO - New connection from client: ::ffff:192.168.1.3
2020-07-03 19:11:14,308 - octoprint.server.util.flask - INFO - Passively logging in user vasficem from ::ffff:192.168.1.3
2020-07-03 19:11:14,567 - octoprint.access.users - INFO - Logged in user: vasficem
2020-07-03 19:11:14,687 - octoprint.server.util.sockjs - INFO - User vasficem logged in on the socket from client ::ffff:192.168.1.3
2020-07-03 19:11:18,101 - octoprint.server.preemptive_cache - INFO - ... done in 23.38s
2020-07-03 19:11:21,209 - octoprint.plugins.tracking - INFO - Sent tracking event system_unthrottled, payload: {'throttled_mask': 327680, 'throttled_voltage_now': False, 'throttled_voltage_past': True, 'throttled_overheat_now': False, 'throttled_now': False, 'throttled_past': True, 'throttled_overheat_past': False}
2020-07-03 19:16:35,052 - octoprint.util.comm - INFO - Communication timeout while idle, trying to trigger response from printer.
2020-07-03 19:17:05,081 - octoprint.util.comm - INFO - Communication timeout while idle, trying to trigger response from printer.
2020-07-03 19:17:35,097 - octoprint.util.comm - INFO - No response from printer after 3 consecutive communication timeouts, considering it dead.
2020-07-03 19:17:35,512 - octoprint.plugins.tracking - INFO - Sent tracking event commerror_timeout, payload: {u'throttled_now': False, u'throttled_past': True, 'commerror_text': u'Too many consecutive timeouts, printer still connected and alive?', u'throttled_mask': 327680}
Additional information about your network (Hardware you are trying to connect to, hardware you are trying to connect from, router, access point, used operating systems, ...)

I have been using my ender3 with octoprint for about a year. this week it suddenly gave the abovementioned error. Despite i have changed the power supply, switched to abnother raspberry or even taped the 5v pin it continius to give the same error again.
I have read the forum and saw topics like this but no solutions given there solved my problem. It started when i wanted to print PETG with higher degrees on the hot end and it doesnt appear when i want to print PLS like in 195-215 degrees.(i have changed the thermistor as well)

Before you do anything else, fix your Pi's power supply, it's not providing enough power to your Pi at all time and that can cause ALL kinds of problems.

it is an original raspberry power adaptor. and also tried with a 3.5 A power source.

That may very well be, but your Pi still thinks that something is wrong, otherwise it would not set the flag in question. Note that it is indeed the Pi that makes that conclusion, not OctoPrint.

Hello guys, again. I figured the problem out which has nothing to do with raspberry nor power source:) I have changed the thermocouple and everything is working now:)
thanks for help anyway.

1 Like

Great you fount the culprit. So could you please: