I can access my time capsule from my mac mini at work but my macbook can only access it from my home network. how do i fix this?

Question

I have a Mac Mini and a MacBook, both were configured at home to access the time capsule. I have since moved the mini to work to use there and it has no issues looking up files on the time capsule which remains at home. The macbook whoever can only access the time capsule from within the home network. I can't seem to find what I may have done differently. Can anybody help?
Not sure if your allowed to post two questions, but it's may be related. I find that accessing the files on the time capsule from the mac mini or the macbook is very slow. Accessing the same files from an older HP laptop is as fast as accessing its own hard drive. How can I speed up the accessing of these files from my apple products. One would think they would work fast and the 'windows' computers would take minutes to map the drive each time... 
Thanks for any help.

Answer 1

I have since moved the mini to work to use there and it has no issues looking up files on the time capsule which remains at home.
This cannot happen by magic though.. you must have configured the mini to access the TC remotely.. which method are you using, BTMM and iCloud??
The macbook whoever can only access the time capsule from within the home network. I can't seem to find what I may have done differently. Can anybody help?
How is the Macbook configured to access the TC remotely?? If you are trying to use BTMM and iCloud, then it might be a case that with the mini running the connection cannot be done by more than one computer at a time.. this is generally the case although I do not know if that is specifically true of BTMM method. Try turning off the mini and leave it off.. (off not standby)... then reboot the TC when you are at home.. and then try and connect the laptop to the TC the next morning from work. See if it is then able to capture the connection.. if so start up the mini and I suspect it now will not be able to connect.. that will prove that the TC cannot cope with two remote connections.
There also could be another factor in here. If you are accessing the laptop via the same router as the mini is on.. then actually you cannot have two users mount the same files on a TC.. from the same IP address.. as far as the TC is concerned both devices have identical IP, that is the public IP of the work location router.
If you happen to not be using BTMM then the situation is even easier.. you cannot make two different devices connect to the same network resource using the same port. That is the failing of the NAT system.. one device uses the port then it cannot be used by a second device. You will need to do some fancy footwork and use a different port.
Anyhow tell us exactly how you are doing remote access.. otherwise I am just guessing.
Not sure if your allowed to post two questions, but it's may be related. I find that accessing the files on the time capsule from the mac mini or the macbook is very slow.
Are you talking about files you are hosting on the TC?? Not Time Machine backups??
Can you tell me exactly how you are accessing the TC.. please do a test..
Copy a file to the TC and from the TC using the Laptop.. Use a single very large file, eg 1GB movie file.
Give me a read and write speed.. you can use activity monitor to give me an aprox average speed as well as peak.
Do the same test from the same computer with wireless turned off running ethernet.
Then do the tests from the mini.. same ones.. copy large file to and from the TC by ethernet and by wireless.. when using ethernet make sure wireless is off.
I strongly recommend you set IPv6 to link local only for your wireless and ethernet setup in the Mac.
eg
Now do the test from the HP laptop and give me the results from that.
Is the issue wireless only.. ??
Then you might need to spend a bit of time fixing the wireless in the Macs.. you can run wireless diagnostics in Mavericks.
About Wireless Diagnostics