We have moved our physical servers to virtual servers on hyper-v. We were running the Ubuntu servers for few years without any issues. However since we have shifted the servers, the network connectivity started dropping suddenly and in a random behavior. Once the issue occurs, the server can't ping or ssh any server in the local or external lan. Even restarting the network doesn't work. I can't find any errors when I check the server logs. The only solution to get the server running again is to restart it. Those servers are very critical to the university since they run MySQL and LMS. So any help is really appreciated.
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