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First thing I would check is that the network drivers are up to date. <br />
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-M
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Hundreds of RPC connection to exchange at one time and several disconnects. &nbsp;Send and receive wills tall on the receive. &nbsp;I was not experiencing this but when our SMTP services was stopped and then re-started several employees experienced the same issue but when SMTP returned they were fine. &nbsp;I have continued to experience the issue. &nbsp;I have gone as far as to delete my account on the client and re-create it. &nbsp;No luck
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Hundreds of RPC connection to exchange at one time and several disconnects.  Send and receive wills tall on the receive.  I was not experiencing this but when our SMTP services was stopped and then re-started several employees experienced the same issue but when SMTP returned they were fine.  I have continued to experience the issue.  I have gone as far as to delete my account on the client and re-create it.  No luck

Some users not all are unable to stay connected to Exchange in our co-lo, connection go up and down,  lots of RPC connections on Exchange for those users

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