Tried this and am now getting errors in my log file.  Not sure if it is 
related to the missing data or not.  Log file extract is below.  Any 
suggestions as to how to fix this would be much appreciated.

 12:33:24 raspberrypi weewxd: restx: MQTT: network 
encryption/authentication will be attempted
Apr  7 12:33:24 raspberrypi weewx[8459] DEBUG weewx.engine: Finished 
loading service user.mqtt.MQTT
Apr  7 12:33:24 raspberrypi weewx[8459] DEBUG weewx.engine: Loading service 
weewx.engine.StdPrint
Apr  7 12:33:24 raspberrypi weewx[8459] DEBUG weewx.engine: Finished 
loading service weewx.engine.StdPrint
Apr  7 12:33:24 raspberrypi weewx[8459] DEBUG weewx.engine: Loading service 
weewx.engine.StdReport
Apr  7 12:33:24 raspberrypi weewx[8459] DEBUG weewx.engine: Finished 
loading service weewx.engine.StdReport
Apr  7 12:33:24 raspberrypi weewx[8459] INFO __main__: Starting up weewx 
version 4.4.0
Apr  7 12:33:24 raspberrypi weewx[8459] DEBUG weewx.manager: Daily summary 
version is 4.0
Apr  7 12:33:24 raspberrypi weewx[8459] DEBUG weewx.manager: Daily summary 
version is 4.0
Apr  7 12:33:24 raspberrypi weewx[8459] DEBUG weewx.manager: Daily summary 
version is 4.0
Apr  7 12:33:24 raspberrypi weewx[8459] DEBUG weewx.manager: Daily summary 
version is 4.0
Apr  7 12:33:24 raspberrypi weewx[8459] DEBUG weewx.drivers.vantage: Gentle 
wake up of console successful
Apr  7 12:33:25 raspberrypi weewx[8459] INFO weewx.engine: Clock error is 
1.83 seconds (positive is fast)
Apr  7 12:33:25 raspberrypi weewx[8459] INFO weewx.engine: Using binding 
'wx_binding' to database 'weewx.sdb'
Apr  7 12:33:25 raspberrypi weewx[8459] INFO weewx.manager: Starting 
backfill of daily summaries
Apr  7 12:33:25 raspberrypi weewx[8459] INFO weewx.manager: Daily summaries 
up to date
Apr  7 12:33:25 raspberrypi weewx[8459] DEBUG weewx.drivers.vantage: 
Getting archive packets since 2021-04-07 12:30:00 BST (1617795000)
Apr  7 12:33:25 raspberrypi weewx[8459] DEBUG weewx.drivers.vantage: Gentle 
wake up of console successful
Apr  7 12:33:26 raspberrypi weewx[4516] ERROR weewx.drivers.vantage: 
ip-read error: timed out
Apr  7 12:33:26 raspberrypi weewx[4516] ERROR weewx.drivers.vantage: LOOP 
try #2; error: timed out
Apr  7 12:33:27 raspberrypi weewx[8459] DEBUG weewx.drivers.vantage: 
Retrieving 0 page(s); starting index= 0
Apr  7 12:33:27 raspberrypi weewx[8459] INFO weewx.engine: Starting main 
packet loop.
Apr  7 12:33:27 raspberrypi weewx[8459] DEBUG weewx.drivers.vantage: Gentle 
wake up of console successful
Apr  7 12:33:28 raspberrypi weewx[8459] DEBUG weewx.drivers.vantage: 
Requesting 200 LOOP packets.
Apr  7 12:33:28 raspberrypi weewx[8459] DEBUG weewx.drivers.vantage: Gentle 
wake up of console successful
Apr  7 12:33:30 raspberrypi weewx[4516] ERROR weewx.drivers.vantage: 
ip-read error: timed out
Apr  7 12:33:30 raspberrypi weewx[4516] ERROR weewx.drivers.vantage: LOOP 
try #3; error: timed out
Apr  7 12:33:34 raspberrypi weewx[4516] ERROR weewx.drivers.vantage: 
ip-read error: timed out
Apr  7 12:33:34 raspberrypi weewx[4516] ERROR weewx.drivers.vantage: LOOP 
try #4; error: timed out
Apr  7 12:33:34 raspberrypi weewx[4516] ERROR weewx.drivers.vantage: LOOP 
max tries (4) exceeded.
Apr  7 12:33:34 raspberrypi weewx[4516] INFO weewx.engine: Main loop 
exiting. Shutting engine down.
Apr  7 12:33:34 raspberrypi weewx[4516] DEBUG weewx.restx: Shut down MQTT 
thread.
Apr  7 12:33:34 raspberrypi weewx[4516] DEBUG weewx.restx: Shut down WOW 
thread.
Apr  7 12:33:34 raspberrypi weewx[4516] DEBUG weewx.restx: Shut down 
PWSWeather thread.
Apr  7 12:33:34 raspberrypi weewx[4516] DEBUG weewx.restx: Shut down 
Wunderground-RF thread.
Apr  7 12:33:34 raspberrypi weewx[4516] DEBUG weewx.restx: Shut down 
StationRegistry thread.
Apr  7 12:33:34 raspberrypi weewx[4516] CRITICAL __main__: Caught 
WeeWxIOError: Max tries exceeded while getting LOOP data.
Apr  7 12:33:34 raspberrypi weewx[4516] CRITICAL __main__:     ****  
Waiting 60 seconds then retrying...

On Wednesday, 7 April 2021 at 12:16:21 UTC+1 david_h wrote:

> OK.  Ignore my question about daily summaries, given your follow-up email.
>
> On Wednesday, 7 April 2021 at 12:15:29 UTC+1 david_h wrote:
>
>> Gary - many thanks.  I think I did the wee_device dump previously, but 
>> will retry and follow your other steps.  Do I rebuild daily summaries using 
>> wee_database 
>> --rebuild-daily --from=YYYY-mm-dd?
>>
>> Thanks
>>
>> David.
>>
>> On Wednesday, 7 April 2021 at 12:07:46 UTC+1 gjr80 wrote:
>>
>>> Hi depends on the archive interval you are using, the IP logger can 
>>> store 2560 archive records. So at a five minute archive interval that is 
>>> 12800 minutes = 213 hours 20 minutes = 8 days 21 hours 20 minutes. It's 7 
>>> April today so if you are using five minutes you may have lost 29 March and 
>>> a bit of 30  March. If you are using > five minutes you are fine, less than 
>>> five minutes, sorry, too bad they are gone.
>>>
>>> Either way I would immediately stop WeeWX and then using wee_device I 
>>> would dump the logger memory using wee_device --dump 
>>> <http://weewx.com/docs/hardware.htm#vantage_dumping_the_logger_memory>. 
>>> This will dump all archive records in the logger memory to the WeeWX 
>>> database, you will likely see many duplicate primary key errors in the log, 
>>> they are just records that have been dumped but are already in your archive 
>>> and can be ignored. Anything that is in the logger and not in your archive 
>>> will be saved. Once --dump is finished rebuild your daily summaries and 
>>> delete your March 2021 and April 2021 NOAA reports and they should be 
>>> regenerated on the first report cycle when you restart WeeWX.
>>>
>>> Gary
>>>
>>> On Wednesday, 7 April 2021 at 20:45:53 UTC+10 david_h wrote:
>>>
>>>> I had a problem due to Daylight Saving Time, which I have resolved in 
>>>> the sense that my station is running fine now and recording data etc.  My 
>>>> weather website is www.ashteadweather.com.  However, it has left me 
>>>> with 3 days of no data in my NOAA reports for 29 March to 31 March 2021 
>>>> inclusive, and hence incorrect "Record" data as this period coincided with 
>>>> the warmest day of the year so far in my location.   I have a Davis 
>>>> Vantage 
>>>> Pro2 with IP Datalogger.  Everything is fine from 1 April onwards, which 
>>>> is 
>>>> when I managed to correct the DST issue.  Does anyone have any ideas as to 
>>>> how I can look for the missing data?  Will it be in my datalogger, or is 
>>>> it 
>>>> lost forever?  Thanks.  David.
>>>
>>>

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