Already provided two solutions- three, if you want to count springs under the rack. Which you seem to not have read anything I posted. One more try.
The problem is not the floor. If the floor was so unstable then you would have had problems with those other tables. The problem is the frequency of vibration going up the rack into the table is right in a range this particular table is unable to handle.
The solution is springs. Thanks.
The problem is not the floor. If the floor was so unstable then you would have had problems with those other tables. The problem is the frequency of vibration going up the rack into the table is right in a range this particular table is unable to handle.
The solution is springs. Thanks.

