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I lost access to my NAS share drive since EL Capitan

Hello all,


Since the migration to EL Capitan on my MacBook Pro, I lost the direct access to my NAS Drive under Finder/Shared. My NAS is a Dlink DNS 320 and it is using a standard NETATALK plugin. I have another mac mini with the old Yosemite OS and it is still being able to see my NAS.


When trying to access my DNS320 under my EL Capitan system, because the link is still there under Finder/Shared!, I get two pop-up messages :


"There was a problem connecting to the server "dns325". The server may not exist of it is unavailable at this time. Check the server name or ip adress, check your network connection, and then try again."

and

"There was a problem connecting to the server "dns325". Check the server name or IP address, and then try again. If you continue to have problems, contact your system administrator".


I was able to mount some folders by "connecting to server" function under Finder->Go, and using the URL "afp://dns325._afpovertcp._tcp.local". But it doesn't explain to me why the Finder doesn't see anymore, automatically, my NAS.


It seems to be a bug brought by EL Capitan.


Etienne

MacBook Pro with Retina display, OS X El Capitan (10.11)

Posted on Oct 2, 2015 7:42 AM

Reply
90 replies

Feb 8, 2016 6:56 AM in response to WDI

How was this issue noticed upon release in October and still not have a solution? I just updated to El Capitan on my MBP and now I cannot connect to my NAS, even when I try to manually. Luckily my iMac is connected via Ethernet and still connects without issue, but i still need a solution to access my NAS on my MBP.

Mar 11, 2016 5:16 AM in response to hitchysan

The solution is:


hitchysan

I had this same issue and just solved it. I have a Mac Mini and access my DLink StorCenter over the Ethernet connection, which is a separate connection from what I use for the Internet and everything else (I use WiFi for that). When I upgraded to El Capitan I lost connection with my NAS, clicking the drive in Finder would eventually time out but the device was online (I could access from other devices connected to my Ethernet network as normal).


When I checked the Network properties, for some crazy reason the Subnet value for the Ethernet Connection had been changed to 255.255.255.255 rather than 255.255.255.0 which is correct for the network I have.


I updated the Connection properties to manually specify my IP address, Subnet and Gateway and everything started working as normal.


I wonder if there is an issue with the El Capitan upgrade that messes with the network? While this probably isn't the same issue for everyone there is a good chance it is the issue for some of you.


Worth diligently checking your network settings for the connection that you would access your NAS from.


Thanks

Mar 22, 2016 9:45 AM in response to elaverdiere

Anyone know if the latest 10.11.4 fixes this issue? I've tried what @hitchysan suggested but that didn't resolve the issue for me. I'm using the same gigabit ethernet connection for both LAN and WAN access. My NAS is a Qnap device on a NetGear GS748T managed switch with a NeGear UTM50 firewall. The users MacMini with the issue is only able to reconnect to the NAS when rebooting their system.


I've installed 10.11.4 and will test it out for a couple days to see if Apple in fact has fixed the issue. Will report back my findings. Thanks!

Apr 9, 2016 10:36 AM in response to Szajba

I had problems connecting to my Seagate Personal Cloud...I could connect via AFP but the NAS was not recognised either by Time Machine or by Seagate Dashboard (the software you need to manage backups etc)


The solution was in the network settings on the NAS for IPv6 which were disabled. I enabled them and hey presto everything worked. Worth trying

May 4, 2016 10:43 AM in response to elaverdiere

I fount the solution on my System. It seems the problem is that El Capitan doesn't mount the drive initially via AFP, but through a newer process. If I mount the drive from Finder's "Connect to Server..." menu as such (After unmounting the original attempt.):

afp://server.local/Time Machine

Then it becomes visible in the Time Machine preferences and initializes properly.

I lost access to my NAS share drive since EL Capitan

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