Windows Server 2016 shares are not accessible on domain

I have installed a DC server (Windows Server 2016) in parallel to SBS server, to replace SBS. But, somehow I couldn't connect with shares on new server from any domain computer. I can still ping the new DC but I can browser shares. Error: Network resource is unavailable.

I checked the firewall inbound rules, form SMB to TCP. Its blocked and I couldn;t find any way to turn it on. Its says its controlled by system administrator.

Any help will be much appriciated
bdirAsked:
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Ron MalmsteadInformation Services ManagerCommented:
Your machines are joined to the new domain controller domain?
bdirAuthor Commented:
New server domain joined to old domain and  has replicated the AD from old server. I'm not sure what you are asking.
JohnBusiness Consultant (Owner)Commented:
I think you need to remove the SBS server. The last time I investigated, SBS and another DC could not co-exist on the same network. We always migrated what we needed, removed SBS and then set up the new DC.
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Ron MalmsteadInformation Services ManagerCommented:
That is why I asked the question....thinking...you must have setup a new DC and domain. SBS is a standalone domain system.  Domain trusts for replication of AD only...it doesn't coexist with other DC's.  You need to remove from the domain.
JohnBusiness Consultant (Owner)Commented:
Thanks for the update. I inferred from your question that you might have them on the same network.

What numerical error do you get with:  NET USE T: \\server2016\foldername ?

What machines are trying to connect ?  Any with SMBv1 running?
Pete LongTechnical ConsultantCommented:
You can't form a trust from an SBS domain?

You can have additional Domain controllers (in an SBS domain), in fact you can have up to 74 of them :) the FSMO roles need to remain on the SBS server until it is retired though!

Regards,

Pete
bdirAuthor Commented:
thank  you, so you have any step by instruction to transfer the FSMO roles to SBS
bdirAuthor Commented:
found this in firewall rules SMB over TCP is blocked and I couldn't override by GPO rules to open the port. I'm unable to disable it.

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Windows Server 2016

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