# What are the possible reasons for SNMP timeout - No response? How should I address it? **URL:** \ **Category:** Agentless Device Discovery\ **Tags:** faq\ **Created:** [January 27, 2021, 4:13pm UTC](https://community.sapphireims.com/t/what-are-the-possible-reasons-for-snmp-timeout-no-response-how-should-i-address-it/164 "2021-01-27T16:13:35Z")\ **Posts on this page:** 1\ **Page:** 1
**Author:** ![harish](https://avatars.discourse-cdn.com/v4/letter/h/47e85d/32.png) [@harish](https://community.sapphireims.com/u/harish)\ **Post date:** [January 27, 2021, 4:13pm UTC](https://community.sapphireims.com/t/what-are-the-possible-reasons-for-snmp-timeout-no-response-how-should-i-address-it/164/1 "2021-01-27T16:13:35Z")
These are the possible reasons along with recommended steps to check - 1. SNMP community string used as part of credential profile may be different than the actual string configured in device. Same may be applicable with SNMP V3 profile. - Re-configuring SapphireIMS SNMP credential profile with specific community string or username/passphrases may solve. 2. The port configured for SNMP agent may be different - Re-configuring SapphireIMS SNMP credential profile with specific port may solve. Default port used by SapphireIMS is 161. 3. The device may be slow to respond SNMP queries - Increasing timeout and retries may solve. Default timeout is 5 second and retries is 0. Please note that retries will not use exponential back-off time on each retry. 4. SNMP agent at device might be getting crashed - Need to check this behavior at device level 5. SNMP request/packets may be getting dropped in the network and unable to reach the target device - Network connectivity and congestion needs to be checked