Q: TC no longer a part of my network but my wifi network is still working, mostly. What has happened?

You can find your TC IP address. It kind of depends on your setup but the easiest method is really to reset the TC to factory and then use a static IP.

No files are lost on the TC disk doing this.

Factory reset universal

Power off the TC.. ie pull the power cord or power off at the wall.. wait 10sec.. hold in the reset button.. be gentle.. power on again still holding in reset.. and keep holding it in for another 10sec. You may need some help as it is hard to both hold in reset and apply power. It will show success by rapidly blinking the front led. Release the reset.. and wait a couple of min for the TC to reset and come back with factory settings. If the front LED doesn’t blink rapidly you missed it and simply try again. The reset is fairly fragile in these.. press it so you feel it just click and no more.. I have seen people bend the lever or even break it. I use a toothpick as tool.

N.B. None of your files on the hard disk of the TC are deleted.. this simply clears out the router settings of the TC.

 

Setup the TC again.

 

Then redo the setup from the computer you want to use for TM using Airport Utility.

1. Use very short names.. NOT APPLE RECOMMENDED names. No spaces and pure alphanumerics.

eg TCgen5 for basestation and TCwifi wireless name.

 

If the wireless is still a problem set wireless names like TC24ghz and set the 5ghz to different name.. eg.TC5ghz

 

2. Use all passwords that also comply with 1. but can be a bit longer. ie 8-20 characters mixed case and numbers.. no non-alphanumerics.

 

**3. If the TC is main router you can skip this point. This is only an issue when the TC is bridged.

Ensure the TC always takes the same IP address.. you will need to do this on the main router using dhcp reservation.. or a bit more complex setup using static IP in the TC.

Ignore this point if you don't understand it .. post back if you have drop out issues.

 

4. Make sure IPv6 is set correctly in the computer. ie link-local only for ethernet and/or wireless depending on which you use. Auto is not good enough.

If your TC is main router it has an IP of 10.0.1.1 by default unless you change it.

If your TC is setup in bridge mode then I recommend you swap to static IP.. you can do this by simply changing the Internet tab to static and give it the same IP it is getting now.. once you do the full reset above it should appear in the airport utility at least for a few minutes to accomplish this. You should also use the current DNS servers which are not necessary in bridge but will stop the error message.

I actually run a slightly different version of static IP which has been more reliable. You will need to do a bit more setup though.

https://discussions.apple.com/message/25135547?ac_cid=tw123456#

Thank you for your reply, @LaPastenague. I did what @joeh80 suggested and it worked. I hope Apple now comes up with a true fix for the problem.

I am having the same problem.  TC is not showing up on the airport utility.  Cant change any of the settings now since I can't access the tc interface.  What to do?

I'm happy you managed. But I'm surprised Apple is not more active in this. Many Time Capsules do not work because of this bug and people rely on the Time Machine copies.

Hi - try @MurgenTemplar 's second suggestion to remove the WAN cable and restart the device. That should regain your access to remove the Back to Mac stuff before reconnecting the WAN.

I am able to resolve the issue with the workarounds suggested however, the problem does return.

If like me, you have run out of patience with work a rounds. The best solution is to rollback to v7.7.3 and wait to for the Apple  version upgrade that is sure to fix this.

There is an article in the support forums on how to rollback the version, very easy and takes a few minutes.

deleting back to mac worked thanks

just finished my backup on time machine. The following backup will not start. Had to cut power of TM and the backup started again. What is the reason? What do I need to change to get around the unusual procedure?

Säckingen

The reason is probably Back to my Mac is still activated in your TM. After a restart it takes a couple of minutes for the TM to log into the iCloud and setup BTMM. Disable BTMM after the restart. Good luck.

I bought the TimeCapsule for using service "Back To my Mac".

So what make Apple for function of this service again.

Thank you. This workaround worked for me and I have reported it to Apple Support. We will see. At the moment "Back to my Mac" will not be used by me.

I know some of us and myself contacted Apple. So far no news or communication on the subject by Apple. As far as I know and I'm just a user like us all. 

I did contact the Dutch Apple Support team by phone. The were completely clueless and had no idea at all what was going on and only had ill-advice and no solution.....

The option to disable the 'back to my Mac' to get the TC going is a bit of a poor man solution because from that point on the TC's internal disk is only good for LAN share. Now the problem is that the WAN share of the TC internal disk isn't working anymore. So remote WAN data access and WAN Time Machine backups aren't working.

So true, I will forward your mail to the senior engineer I spoke. To tell you the truth, the IOS support set me through to MAC support and they contacted the senior.

Apple engineering is aware of the issue. A solution is expected within days. Unofficial statement Apple support employee.