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Hello. My Meteobridge (TPLINK/USB) doesn't show any live data. I believe my unit updated today when it lost power and came back on. Prior to that, it had been up for many months so I'm guessing I jumped a few versions. Anyway, here is the log entry since last boot:

wnetd (27.12.2020 15:27:52): process started.
system (27.12.2020 15:27:52): start of logging process initiated.
wnetd (27.12.2020 15:27:52): send data thread started (pid:2153 tid:2154)
logger (27.12.2020 15:27:52): historical data loaded (20 records).
logger (27.12.2020 15:27:52): data logger (version 5.1e, build 14180) started.
logger (27.12.2020 15:27:53): station 0 (Vantage), can't open device /dev/ttyMH: No such file or directory
logger (27.12.2020 15:27:53): station 0 (Vantage), connect to station failed.
logger (27.12.2020 15:27:56): waiting for sensors (wind0, rain0, th0, thb0) to provide data.
logger (27.12.2020 15:27:56): services paused.
logger (27.12.2020 15:28:23): station 0 (Vantage), can't open device /dev/ttyMH: No such file or directory
logger (27.12.2020 15:29:23): message above repeats 2 times.
logger (27.12.2020 15:29:53): give up waiting for sensors after 120 secs.
logger (27.12.2020 15:29:53): services activated.
logger (27.12.2020 15:29:53): station 0 (Vantage), can't open device /dev/ttyMH: No such file or directory
logger (27.12.2020 15:33:23): message above repeats 7 times.
system (27.12.2020 15:33:34): stop of logging process initiated.
logger (27.12.2020 15:33:34): parent process received termination signal (15).
logger (27.12.2020 15:33:34): child process received termination signal (15).
system (27.12.2020 15:33:36): start of logging process initiated.
logger (27.12.2020 15:33:36): historical data loaded (20 records).
logger (27.12.2020 15:33:36): data logger (version 5.1e, build 14180) started.
logger (27.12.2020 15:33:37): station 0 (Vantage), can't open device /dev/ttyMH: No such file or directory
logger (27.12.2020 15:33:37): station 0 (Vantage), connect to station failed.
logger (27.12.2020 15:33:40): waiting for sensors (wind0, rain0, th0, thb0) to provide data.
logger (27.12.2020 15:33:40): services paused.
logger (27.12.2020 15:34:07): station 0 (Vantage), can't open device /dev/ttyMH: No such file or directory
logger (27.12.2020 15:35:07): message above repeats 2 times.
logger (27.12.2020 15:35:37): give up waiting for sensors after 120 secs.
logger (27.12.2020 15:35:37): services activated.
logger (27.12.2020 15:35:37): station 0 (Vantage), can't open device /dev/ttyMH: No such file or directory
logger (27.12.2020 15:41:37): message above repeats 12 times.

I have restarted the Vangate Pro 2 console a couple of time and it is receiving data from the ISS and its serial baud is set to 19,200. Otherwise, nothing else has changed. I did set my software version to "stick with 4.4" and it rebooted and downgraded, but still no console data seems to be showing. I haven't tried earlier versions; I'm not sure what I was on prior to today's power outage. Any help would be greatly appreciate it. Thank you!

I have the same problem after the meteohub update to 5.1e.

I notice that the log shows your station as devMH. Since you’re connecting your console to your tplink via USB I think your connection type has been corrupted. Check your primary station device setting under the station tab and see if it’s still set to USB.

Thanks for the suggestion. I confirmed it is set to Vantage and USB Serial (screen shot attached). You can see no "device" shows up (the list is blank). I also tried rolling back to v4.2. When I did so, there was no primary station set any longer. I set it to Vantage Pro 2/USB and saved it (2nd screen shot), but same thing as on 5.x:
logger (28.12.2020 21:40:14): can't open device /dev/ttyMH: No such file or directory
system (28.12.2020 21:40:38): stop of logging process initiated.
logger (28.12.2020 21:40:44): can't open device /dev/ttyMH: No such file or directory
system (28.12.2020 21:40:45): start of logging process initiated.
logger (28.12.2020 21:40:45): historical data loaded (20 records).
logger (28.12.2020 21:40:45): data logger (version 5.1c, build 13350) started.
logger (28.12.2020 21:40:46): can't open device /dev/ttyMH: No such file or directory
logger (28.12.2020 21:40:49): waiting for sensors (wind0, rain0, th0, thb0) to provide data.
logger (28.12.2020 21:40:49): services paused.
logger (28.12.2020 21:41:16): can't open device /dev/ttyMH: No such file or directory
logger (28.12.2020 21:41:46): message above repeats 1 time.

Is it possible your USB hub ( which is required ) has failed ?. If you have a spare you might try switching it.

Greetings! Just wanted to close the loop on this - the USB hub did indeed fail. I replaced it and everything is good again. Thanks for your help!

I was having the same issue with my 3020. After reading this thread, I went to the primary station page, changed the connection to tcp/ip, saved, then changed it back to USB, and saved. That got my connection back online.