We have had multiple queries regarding strange, respectively wrong readouts when monitoring certain ASA equipment. As we found out today, the problem is a bug in the 7.2 OS causing the SNMP iftable to forward erroneous return values to monitoring software, such as PRTG. Instead of graphing PER vlan values, this bug results in graphing the total number of untagged vlan packets for each vlan.
Version 5.4.1.855 of IPCheck Server Monitor includes some changes and enhancements for SQL and System sensors and a bugfix for WMI sensors.
See the history for details and download this latest version.
WMI (”Windows Management Instrumentation”) is Windows built-in monitoring and management technology (introduced with Windows 2000). It’s a great way to monitor Windows systems in your network.
IPCheck Server Monitor already works with WMI. As accessing WMI counters over a network is not exactly trivial, our new Paessler WMI Tester is a tool that can be used to test the accessibility of WMI counters in a quick and easy manner.
The IT publication WindowsIT Pro has included PRTG in its latest collection of dynamite freeware for your USB toolkit. See the press clipping.
Our latest press release reports about the latest survey results from users of PRTG Traffic Grapher. It reveals that bandwidth management software is a key component in preventing network downtime.
Since introducing WMI sensors to IPCheck with version 5.4.1.834/835 we have received multiple queries on how to monitor processes using WMI Query sensors. Doing so is actually quite simple.
Read more in the Knowledge Base article about “Monitoring the thread count of active processes via WMI Query sensors”
The other day we found a Vista machine in our network that we could not remotely monitor from the LAN using WMI. But WMI monitoring was working fine on all our other Vista machines…
Finally we discovered that on the specific machine the NOD32 anti virus software was causing the same problems for WMI as we had already seen for SNMP (see my post from July 5th about dysfunctional SNMP on Vista).
As soon as we applied the procedure described in the article from July everything was fine for WMI.
A new knowledgebase article has instructions what a user of PRTG Traffic Grapher can do when the “Live Graph” doesn’t show graph lines for the monitoring data although monitoring seems to work ok.
We have received sporadic error reports from users of our software PRTG Traffic Grapher where the program was not properly started “as a service” when the Windows GUI was closed.
In this case this new knowledgebase article has some instructions.
In recent weeks we have received reports about negative PING time measurements (e.g. -5 ms) from users of our monitoring products. “Great”, we thought, “our software has overcome the laws the physics and is able to received network packets before they are actually sent”. But now there are more and more hints showing up around the Internet that we will not receive the Nobel price in physics…