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Thank you for posting your query in Wired Ethernet Communities.
I'd suggest other means of testing such as downloading, transfer files within local area network or use another device to connect to your router for further isolation.
Sharing the latest driver available in our Download Center for i219-V, you may also contact MSI support as our network adapter is integrated to their system, they may have altered the features, incorporated customization. There might be known configuration for your board with the specific environment.