HT3728 My time capsule reports Backup Failed

Question

After a year of more of faultless backups, suddenly my TC reports Backup Failed. I have tried to restart, dismount and remount, but it still reports Backup Failed. I have a 2T TC and use it to backup two Macbooks.

Answer 1

Any ideas?
Wireless Interference
Might be caused by a cordless phone in the vicinity. To give you an example, my neighbor.....across the street...used to be able to literally crash my wireless network if he was in his front yard talking on his cordless phone.
I discovered this by accident one day after spending weeks trying figure out why my network would crash at random times.
Other possibilities include a wireless security/camera system near you
Still other things might be an amateur ham radio operator....which should not interfere....but again from experience, I know that this can occur.
Yet another possibility is another wireless network near you that is being turned on and off at random times. Some users power up their modem/router only when they want to do so and leave it off otherwise.
Some general rules to help avoid interference:
Move any cordless phones that you might have as far away as possible from the Time Capsule and/or your computer(s)
Avoid placing other electronic devices....computer, television, amplifier, satellite receiver, etc. near the Time Capsule and/or your computer(s)
Avoid metal surfaces near the Time Capsule and/or your computers
Elevate the Time Capsule as much as possible. Think of it as a water sprinkler....you want to get the room as wet as possible
Experiment with different wireless channels on the Time Capsule. To do this:
Open AirPort Utility
Click on the Time Capsule
Click Edit
Click the Wireless tab
Click Wireless Options
Start with Channel 11 on the 2.4 GHz band and work your way down
It is unlikely that you are picking up interference on the 5 GHz band since there are.....for now at least.....far fewer networks using this frequency.