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If you're experiencing problems using the ipMonitor SNMP Assistant, refer to the troubleshooting suggestions outlined below:

• The SNMP Assistant Reports 'IE Security Zone Mismatch' Error
• The SNMP Assistant is Visible in the System Tray, but Reports 'SNMP Assistant Not Found' Error
• The SNMP Assistant Reports an Error When Attempting to Communicate with a Device

If you're still having difficulties after consulting this document, contact ipMonitor's Technical Support department between the hours of 9am to 5pm Eastern Time, Monday through Friday at support@ipmonitor.com.

Symptom:
A JavaScript error is returned by Internet Explorer when the ipMonitor SNMP Assistant is launched, or the SNMP Assistant utility pops up an 'IE Security Zone Mismatch' error message. No problems are observed when attempting to use the SNMP Assistant with other web browsers.

Cause:
Internet Explorer requires the following Trusted Sites to be added to its Security settings:

support.ipmonitor.com
you.ipmonitor.com

Adding one of the URLs as a Trusted Site without adding the other will also result in this error message. Both URLs must be 'Trusted' to resolve this issue.

Resolution:
To add the required URLs to Internet Explorer's Trusted Sites list, proceed with the following:

1. From Internet Explorer, click the Tools drop-down menu and select the Internet Options link.
2. Click the Security tab.
3. Click the Trusted Sites icon, then the Sites... button.
4. Add the following URLs to Trusted Sites, clicking the Add button after each one:

   support.ipmonitor.com
   you.ipmonitor.com

   Note: Ensure that the Require Server Verification (https:) for all Sites in this Zone checkbox is not checked.

5. Click OK to save your changes.
6. Close all browser windows, and then attempt to use the SNMP Assistant utility again.

Symptom:
Attempting to scan a SNMP-enabled device results in an 'SNMP Assistant Not Found' Error. However, the SNMP Assistant is launched and visible in the system tray.

Possible Causes and Resolutions:
This error may occur due to Internet Explorer Zone issues (see the troubleshooting steps above). If you've already eliminated this problem as a possible cause, ensure the following:

1. The system being used is connected to the Internet.
2. A firewall is not preventing the SNMP Assistant from listening on 127.0.0.1:49152.
   To test this, attempt to access the following URL:

   http://you.ipmonitor.com:49152/notfound.htm

   You should be able to view the following response: "SNMP Scan target not found".

3. JavaScript is enabled.
4. The DNS resolution is working properly, and is able to resolve you.ipmonitor.com to 127.0.0.1. To test this, attempt to ping:

you.ipmonitor.com

Symptom:
Attempting to scan a SNMP-enabled device results in a communication error.

Possible Cause:
This issue is likely caused by a firewall preventing outbound SNMP packets.

To verify this, try using another SNMP-specific utility, such as Microsoft's SNMPUtil.exe program which is available in the Windows 2000 resource kit. Keep in mind that the firewall may allow or deny SNMP communication based on the program being used.

Resolution:
Consult the firewall vendor's documentation to correct this issue.

For information on other features and concepts related to those discussed in this article, refer to the following ipMonitor resources:

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Last Updated: April 24, 2006 | What did you think of this topic?