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Troubleshooting Microsoft SMB connect issue with Wireshark

The problem is with a device running Windows 7 that is configured with some shares to its local drives like a storage server.

Every so often no one can connect to the shares, Android users just see a spinning/processing icon and windows users get a variety of connection error messages. The end result is always the same, no connection.

The only solution is to reboot the Windows 7 device and things have gotten so bad that now they have a scheduled script that reboots the computer daily.

I asked them to capture some packets from their computer when it happens again.

By noon I had a capture.


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