Troubleshooting guide

Detailed troubleshooting
This topic describes detailed causes and troubleshooting for issues and errors associated with the
Weatherlink logger archive data and that have not been fixed by the Simple remedies.
The root cause of archive download issues that have not responded to simple fixes is usually data
corruption either in the logger itself or on the computer hard drive. To troubleshoot such problems involves
trying to narrow down exactly where the corrupt data is being stored and clearing, deleting or writing over
that data.
A few important initial points: First (and assuming that this is an installation that was previously working
successfully, ie that it’s not a new installation, an attempted upgrade etc), reinstalling the Weatherlink
software is rarely the answer to problems that relate only to archive downloads. If all the other possible
investigations and fixes have been tried but failed then reinstallation can also be tried of course, but it
should be more of a last resort – work first through the other suggestions below and don’t waste time trying
reinstallation early on.
Second, deleting (‘clearing’) the logger of all its data is occasionally the only way of fixing archive download
issues, but no-one wants to lose data and there are often other solutions that will fix the problem, so once
again clearing the logger should be left as a last resort.
Third, there’s a distinction between download issues that happen just once in a while and those that start to
occur more often. For very occasional problems it’s usually not worth the time and effort to go further than
correcting the immediate error. Very occasional data corruption can occur with any computer-linked system
and due to causes as unlikely as cosmic rays – it’s entirely possible that a one-off issue might never recur
and that the original cause could never be known for sure. But if the problem does start to happen
repeatedly then clearly further investigation is merited. See the final section below on ‘Recurrent archive
download problems’.
Troubleshooting steps
Once again, be sure to try the Simple remedies first. But if the archive downloads continue to give trouble
then try the following fixes in this order:
1. Inspect the archive database carefully
In Browse mode of Weatherlink (the Notepad-like icon on the toolbar or select Browse from the Window
menu or simply Ctrl W) look carefully through the most recent records, especially the very last one. Look
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