Although not specifically a SPECTRUM issue this can cause problems in monitoring an environment. To resolve this issue please follow these steps:
1) Open a command window (cmd) or a shell to work in.
2) Change directory to the System Edge install directory by default sysedge (i.e. cd /sysedge)
3) Run: setup -p 1691
4) Restart the System Edge agent
This can be done on Windows in the Services List under the Administrative Tools window. Simply highlight the System Edge line select the stop option and once it has completely stopped select the start option.
In Unix, run net stop sysedge and when the agent stops run net start sysedge.
5) Once the agent has restarted you will now be able to model it via port 1691.
Failed to model a System Edge agent in SPECTRUM by port 1691
Modeling a SysEdge device fails when using port 1691
AutoDiscovery fails to model a SysEdge device with port 1691
Causes of this problem:
By default the System Edge agent does not anchor its listening port.
(Legacy KB ID CNC TS32825 )