Unable to discover switch or router with Identification engine errorDescription<!-- div.margin{ padding: 10px 40px 40px 30px; } table.tocTable{ border: 1px solid; border-color:#E0E0E0; background-color: rgb(245, 245, 245); padding-top: .6em; padding-bottom: .6em; padding-left: .9em; padding-right: .6em; } table.noteTable{ border:1px solid; border-color:#E0E0E0; background-color: rgb(245, 245, 245); width: 100%; border-spacing:2; } table.internaltable { white-space:nowrap; text-align:left; border-width: 1px; border-collapse: collapse; font-size:14px; width: 85%; } table.internaltable th { border-width: 1px; padding: 5px; border-style: solid; border-color: rgb(245, 245, 245); background-color: rgb(245, 245, 245); } table.internaltable td { border-width: 1px; padding: 5px; border-style: solid; border-color: #E0E0E0; color: #000000; } .title { color: #D1232B; font-weight:normal; font-size:28px; } h1{ color: #D1232B; font-weight:normal; font-size:21px; margin-bottom:-5px } h2{ color: #646464; font-weight:bold; font-size:18px; } h3{ color: #000000; font-weight:BOLD; font-size:16px; text-decoration:underline; } h4{ color: #646464; font-weight:BOLD; font-size:15px; text-decoration:; } h5{ color: #000000; font-weight:BOLD; font-size:13px; text-decoration:; } h6{ color: #000000; font-weight:BOLD; font-size:14px; text-decoration:; } ul{ list-style: disc outside none; margin-left: 0; } li { padding-left: 1em; } --> Symptoms Run discovery to switch or router get following error in discovery pattern log: Get ipForwarding flag2018-08-30 14:09:46: getting SNMP scalar 1.3.6.1.2.1.4.1 from xx.xxx.xx.xxx .Context: null/null2018-08-30 14:09:52: Error during walk from host xx.xxx.xx.xxx. TableEvent:-1. Error Message: Request timed out.2018-08-30 14:09:55: Error during walk from host xx.xxx.xx.xxx. TableEvent:-1. Error Message: Request timed out.2018-08-30 14:09:55: Failed to get SNMP scalar 1.3.6.1.2.1.4.1 from host xx.xxx.xx.xxx community: ******discovery2018-08-29 21:10:01:Check Processing Success2018-08-29 21:10:01: Identification Engine: Discovery status is FAILURE, unable to get error message. Note: xx.xxx.xx.xxx is referring to device ip address Release Kingston Cause snmp timeout Resolution Add following mid server parameters to higher value. mid.snmp.request.timeout mid.snmp.session.timeout By default, they are 1500 millisecond. In my case, I have to increase to 6000 milliseconds in order to fix the issue.