Symptoms ... When the coloradvisory probes generated by Javascript loaded on the browser do not get responded by the BIG-IP device within 30 seconds, the browser JS generates a pop-up message "Unable to contact BIG-IP device". ... Impact ... Browser frequently sees the BIG-IP as unavailable, causing interruptions to management of the device via the GUI. ... Conditions ... 1. Increase memory allocated to tomcat and restjavad. ... tmsh modify sys db provision.tomcat.extramb value 512 tmsh modify sys db provision.restjavad.extramb value 2227 NB these are very large values, not suitable for most systems. ... It is probably best to increase tomcat heap size by 50MB a time, and restjavad by 200MB a time (value 600, 800, etc). ... To have provision.restjavad.extramb values will be capped in effect to 384 + value of provision.extramb. ... Both tomcat and restjavad need to be restarted to have changes take effect. ... restjavad will log startup info in ltm log.