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Problem: When trying to import OR restore database, the error returns "Mysql server has gone away".
Step: Edit [my.cnf -OR- my.ini whichever your web server is using] file that resides inside mysqlbin folder and then try either one OR both of the following solutions.
Solution 1: Set max_allowed_packet = 64M
Reason 1: Server dropped a large or incorrect packet.
Solution 2: Set wait_timeout = 600
Reason 2: Server timed out and connection was closed.