Yosemite [erroneously] displays multiple Shared Instances under Finder

If you can reliably replicate the problem, Apple would be very interested in the logs produced by the steps I highlighted on page 4 of this discussion. https://bugreport.apple.com/

Having the same issue. Thanks for posting.

The same issue. MacbookPro Mid2012 10.10 (14A389)

Same issue here as well.....argh!@#$^%*()*

Unfortunately, the update does not seem to have resolved the issue. Not for my machine, certainly.

It appears to have fixed the problem for me... Mind you I only just tested it for a minute but it appears everything is back to pre-Yosemite ways

The update removed the extra number from my computer name and got “Back to Mac” working. Now all the problems that I have found with Yosemite have been fixed.

What I found was that the update DID seem to solve the duplicating issue. Rebooting the Airport Express cleared the duplicates listed under "Shared."

However, my two machines cannot CONNECT to each other using the links provided under "Shared". They can via Finder \ Go \ Connect to Server (or Command K).

Since the original issue of duplicates was one that developed and worsened over time, and since the links under "Shared" still do not work, I likewise plan to monitor the computers for a potential reemergence of the issue.

After the update my iMac has broadcasts itself as "iMac 4698781295368448247" and appears as shared in its own finder. On other Macs it appears twice in sharing with slightly different numbers after it. The iMac is correctly identified in Sharing as "iMac."

This behavior started during the beta program and everything I've tried has failed.

Have to jump in here and note that I too am having issues with Yosemite. We have a mostly Apple setup here. We have two iMacs, one 6 months old, the other 6 years LOL. Both running Yosemite and with the v.10.10.1 upgrade. We also have two iPads, one being an iPad2, the other a 1Pad4, and two iPhone6's. Also have one token Windows machine which is not problematic LOL. Hows that for a twist of the knife... the PC is running like a champ, my iMac is running like a sick puppy. Oh yeah... also have a Gen1 Apple TV on the network, hardwired.

So in the left column in Finder I'm showing "Mikes iMac (11)" in the "Devices" section, the in "Shared" I see "Mikes-iMac (6). My ISP is Comcast, have their Cable Modem, connected to my Airport Extreme A1521 802.11ac. The modem does have two "networks" a 5GHz and a 2.4GHz. I should note that since installing Yosemite the multiple listings of Mike's-iMac have shown up, and also I am seeing the spinning ball for much longer periods of time than I have ever seen it before when I try to attach an image to an email or something along those lines. I tried to do a bit of housekeeping, and delete some movies that were on my root drive, and even throwing the trash seems to take longer than ever.

Has anyone determined if this is in fact a Yosemite bug or what, and is there a solid fix? Like I said up above... its ironic that my Windows machine is running without any hiccups for months on end and its been nothing but a struggle with Mavericks and Yosemite.

Mike

Hello LightenMike

Sadly as you will see from this growing thread, there is no 'fix' or an apple solution so far. But hopefully Apple will sort this out, it seems that there are quite a few 'bugs' in OS X 10 that need sorting so keep an eye out for any patches that Apple put up.

FYI - I've now got my iMac showing 16 erroneous copies in my shared section in Finder!!!

I have installed the latest update for Yosemite, but I still see the duplicate devices under Sharing in the Finder.

Still waiting for a successful resolution from Apple.

Running 10.10.1 has made no difference. Resetting the wireless network and routers have also made no difference.

Heaven only knows where this has crept in, but it is very flaky in that it affects some machines, but not all. MacBook Pro (late 2008) affected, but MacBook Air (2010) not. That said, something is broadcasting on the network as the Air still sees multiple copies of the MBP, so something's shouting rubbish!