Computers not connecting to DS212J after DSM 4.0 upgrade

[kha0s]

I haven't had any problems with my DS212J system, but I updated the DSM to 4.0 today and afterwards my mac won't connect to the NAS via finder with wifi. I can still connect through the web portal app, but the finder keeps responding that it can't connect. I have tried it through the Connect to Server (command+k).

"The server may not exist or it is unavailable at this time. Check the server name or IP address, check your network connection, and then try again."

It's pretty annoying. I was in the process of a back up through time machine when I noticed that it wouldn't connect. I hope there is an easy fix. I know it had issues prior to the DSM 3.2, but thought that was fixed. And since I don't see anyone else complaining about the 4.0 upgrade, I'm sort of confused about this.

I tried it with my desktop (10.6.6) directly connected as well, and the finder is unable to connect. It seems like the only way I can connect to my NAS now is through the web viewer.

The only thing that I set up since the DSM update was setting up an DDNS for remote access as well. I disabled it, and attempted everything again, but with no luck.

I have restarted everything about 5 times. Computer, NAS, router, modem have all be restarted. This is extremely frustrating.


UPDATE: I also tried connecting via LAN with my Windows 7 partition on my desktop and it will not connect. All three setups cannot connect through the network, only through the web portal.


UPDATE: SOLVED!

Wow... I completely forgot that I posted this awhile ago and left every one hanging after I figured it out. Well I didn't technically figure it out. I contacted the support team (which have been very helpful) and they gave me instructions that fixed the problem. I apologize this is so late, but hopefully it helps some people in dispair.

1) Go to Control Panel -> Win/Mac/NFS
2) Disable Windows File Service, Mac File Service in those two tabs.
3) Reboot the DiskStation
4) When its back up re-enable Windows File Service and Mac File Service.
5) Reboot your computers that are on the network
6) Then try to mount/map shares and browse the network for it.

I feel like a jerk for not posting this a few months ago after coming back here and finding out that so many people had the same issue. I hope this makes up for it!

[kha0s]

This problem still exists. No computer is connecting via LAN connection and/or wifi. The only way I can connect to my Synology is through the web portal.

I have Reset the DS212J via the RESET button in the back. I re-installed the DSM and set up a new DiskStation. I am getting ready to just return this. It was good up until I installed the new DSM 4.0.

[gnomen]

i have the same problem, everything worked fine, i updated to dsm 4.0-2198 and now i can only connect to the web interface, my windows 7 can see the synology, but not the media center, and i can't get to any of the folders, windows simply won't connect to the synology.

please help

[gnomen]

i have managed to save all my stuff on the disk using ftp, but would like a fix to the problem, since i really like the new dsm

[jltnol]

This could be a "Recent Server" issue.

Try this:

In System Prefs, under the General Tab, set the number of recent items for servers to Zero.

Restart

Then see if you can connect to your DS. Once the Recent Server Cache is cleared out, you should be able to set it to whatever you like.

[tonyclovelly]

Hi there,

can someone from Support reply please, this is a general issue that a lot of people are experiencing.

The solution provided does not work.... very frustrating....

Looking forward to your prompt resolution of this issue!

Thanks!
Tony

[HarryPotter]

can someone from Support reply please

This is a user forum. If you need personal assistance by Synology staff, please submit a support form.

[myCloud]

Have you checked in Control Panel -> Win/Mac/NFS to see if Mac File Service is still running and Time Machine is pointed to the appropriate share? (IIRC, reset disables it)

[danielp]

Hello,

Please update to our latest DSM4.0-2219 as this may be an old issue that has already been fixed. You may check that your DSM Firewall rules include the Windows File Server rule or just enable all.

[keepitwarm]

latest DSM update disabled the Mac service for me, i just enabled it, on the control panel and was connected again.

[goshdamo]

Hey guys i fixed this issue by disabling the firewall

[etonrifle]

Fixed this problem

I couldn't even log on using web interface. Had what looked like a corrupted PHP login.

I tried all of the above and the only thing that worked was pushing the reset button on the back.

This reset the admin account password to blank but kept everything else and I ended up with all my previous info in DSM 4.0


Hope this helps someone

[tusker]

Very many thanks to the contributor who pointed out that disabling the disk station firewall via its control panel solves the 'computer can see the disk station on the network, but can't access it' problem. Disabling the firewall finally means I can use my Synology NAS for backups many months after purchase and after hours and hours of delving and searching for a solution. I can finally use my disk station for one of the prime reasons for buying it in the first place!!! Why oh why don't Synology put in some detection algorithm so when this problem occurs, which judging by the posts is all-too-common, so there is at least some pointer to the solution, to save newbie users this massive hassle??? Synology need to make their mind up as to whether they make products for the specialist/expert/professional user community, or for everyone. Tusker

[jltnol]

Why oh why don't Synology put in some detection algorithm so when this problem occurs, which judging by the posts is all-too-common, so there is at least some pointer to the solution, to save newbie users this massive hassle??? Tusker

The firewall is disabled by default. if you are a "newbie" why did you turn it on?

[nomadvisuals]

Hello,
I've been hit by this issue. I was setting up my 412+ and it was working, then after trying to setup the internet connection, I was loosing connection with the server in finder without understanding why. The firewall was indeed blocking it.

I hadn't been careful enough that when you run EZ-Internet it does setup a firewall rule and only some built in apps are selected by default, leaving all the rest blocked.

So I went there and added "Share files with MAC", "Windows file server" and "MAC/Linux file server" since I activated those services, BUT it didn't allowed still to connect to the server to finder...

After some research I found out the "built in application" rules only miss one port to let you able to connect to your NAS with finder. Just add this rule:

Ports: Custom
Type: Destination
Protocol: UDP
Ports: 137
Source IP: All
Action: Allow

Leaving the base rule allowing the built in apps and denying everything else if no rules are matched.

I don't know if it'll work for everyone, but this does the trick for me.

-david