Since this week I am having identical problems as described in kb49303 (https://kb.paessler.com/en/topic/49303-unable-to-see-historical-data-in-report).
Reports for other (ping, snmp) sensors work, only not for bandwidth/traffic sensors. For these the graphs are empty in PDF reports (see attached example). I am able to view them under live/historical data and create HTML-based reports however, so the data does exist and is available for PRTG.
Tried and tested; - Setup > Systeem beheer > Systeembeheer > Recalculate PRTG Graph Data Cache - Restart server
Both to no avail.
Could you please help me solve this puzzle? PRTG version: 14.2.9.1.1799
Kind regards,
Richard Laning
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