Mac – How to take datas from apple time capsule

If your Dell running Windows 7 is connected via ethernet or WiFi directly to the Time Capsule, then it sure should be able to ping. Perhaps a firewall is blocking those packets? Also - you might want to manually assign a 172.16.x.x address to be sure it's not a routing issue.

Airport Utility uses IPv6 when it can as well as Bonjour (mdns) so it will find attached units more aggressively than ping. Also, I've connected to Time Capsule from PC across the internet, so it's not something that has to be on the same subnet - just that the networks have to be working correctly.

In your case, 255.255.252.0 isn't a wide enough netmask to unify 172.16.x.x with 192.168.x.x. However, shares work over the internet, so it's really a routing issue and not something necessarily wrong with a netmask. Can you at least get all the machines on the same subnet?

Mobile Me also solves this problem for mac users but I doubt that's something you can sign up for during the transition to iCloud (and it would merely work around your network issues, not solve them).

Finally, I decided to give a try by myself. I had no particular problem, I just followed the well known procedure of backup to Time Capsule, interrupt, and restore the USB drive to the Time Capsule sparsebundle related to the machine.

All my previous backup, have ben recognized. However, for 500GB of data I had to wait for two days to be completed.

Apparently, by matching the two .sparsebundle size, the data seemed to be transferred in a reasonable time from 4 to 7 hours. For the rest, it just seems that disk utility stopped doing nothing for the rest of the time.

Even the USB drive went in stand by mode for almost two days. Then, after two days, it just stop informing that the restore went fine.