We are able to launch MIB Tools, but noticed it does not finish loading or displaying the MIBs. Occasionally the users would see an message that OneClick was running low on memory and need to close.
Checking the OneClick Web Page, under the Administration pages, we noticed the "Web Server Memory" settings and the "OneClick Client Configuration" memory settings are lower than the Spectrum default settings. We suspect these setting were kept from an older deployment of Spectrum.
Verify the memory allocated to Tomcat and the OneClick client by:
We modified the allocated Tomcat memory from 1280 MB to 4096 MB (10.2.x default setting), and the OneClick client max memory from 512 MB to 1024 (10.2.x default setting), and now MIB Tools loads and displays the MIBs.