General

Slow Copy Speed Over Network from SMB Share - Disable SMB Security Signature.#

If you have a Win 11 24H2 or newer client, that when copying files from an SMB share (NAS), even when connected via Ethernet and 1Gbps connection - you are only able to get 30-40 MB/s transfer (when it should be 100+ MB/s). Disable SMB Client Security Signatures reboot and try again.

Run the following PowerShell command: 

Set-SmbClientConfiguration -RequireSecuritySignature $false

Get Dell Service Tag#

PowerShell: 

GWMI -Class Win32_Bios | Select SerialNumber
Command Prompt (prior to Win 11 24H2): 
wmic bios get serialnumber