Also, Dell switch management vlan and IP address range is different to vlan and ip address of server performing the snmp query.

ActiveTreeServices,

Since you have the snmp server on a different vlan, I would start with making sure that they can actually ping each other. You may also want to confirm that you set the version of snmp depending on what snmp server software you use. Afterwards could you check the logs to see if there are errors, and make sure it is configured correctly, based on page 872 here. Lastly, you may need to get into wireshark traces to see where the packets are dropping.

Let me know what you see.

I can ping from both sides and can access the switch via SSH no problem.

When I do a show snmp it returns the following

Wireshark simply shows no response from the switch, as though the switch is not even listening for SNMP requests.

The SNMP version is 2c.

Regards,

Ian

I have a sneeking suspsicion my problem has to do with command:

snmp-server vrf management

The manual provides an explanation for the above command but I still don't know what it does.

Hi, Dell switches have 1.default VRF 2.Non-VRF  3. Management VRF. According to that command the SNMP queries passes through Management VRF instead of default or non-default VRF.
https://dell.to/3pqM8kq
Please refer to page# 759 onwards.

Tips to fix-

Verify the Computer Finishes Initial Power-Up (POST)
Unplug all devices, and perform a hard reset
Run a Computer Diagnostic
Check for Specific Error Messages
Reset the BIOS to Default Values
Safe Mode Troubleshooting
Virus and Malware Troubleshooting
Reset your Windows 11 or Windows 10 Operating System
Restore the Operating System to Factory Settings

Regards,

Rachel Gomez