HT1178 What does (error code -6584) mean?

Question

I have recently bought a new MacBook Pro and migrated all my data from my old MacBook Pro to the new one.  Now my new MacBook will not connect with the Time Capsule - I just get a message that:
The operation can’t be completed.
An unexpected error occurred (error code -6584).

Answer 1

(error code -6584) unfortunately won't tell you much that you do not already know....the connection attempt failed. That was the "unexpected error".
You may have already done this...but your post did not indicate whether you had.
Complete power cycle of the entire network....
Power everything down in any order you want
Wait a minute
Start the modem first, and let it run a minute or two
Router next (might be your Time Capsule) the same way
Continue starting devices one at a time about a minute apart
Did you completely reset the connection path in Time Machine Preferences to "point" your Mac at the Time Capsule disk?
If not, click the Time Machine "clock" icon at the top of the Mac's screen
Click Open Time Machine Preferences
Click Select Disk
Click your Time Capsule to highlight it
Click Use Backup Disk