Windows 2012 file and print sharing problem

I have just subscribed to a 1 & 1 cloud dynamic server ( windows 2012).
I have added a second public IP address and was progressing ok, having been able to access the cloud server from my windows 7 professional workstation by entering the following command in the Start box

\\VM1.alcindorcloud.com

From there I could login with user name an password that I had configured on the server.
I was able to copy files up to the server from the browser - no problem.
This lasted for a couple of days and after that I was not able to connect to the server that way ?
I can still access the server using remote desktop connection but that is all. I can also ping vm1.alcindorcloud.com.
I have configured the 1 & 1 firewall to allow TCP ports and UDP ports 445 and 135-139.

When I try to access the server using \\VM1.alcindorcloud.com I don't get the login prompt; just the message "Windows cannot access \\vm1.alcindorcloud.com" after a delay and when I click on the Diagnose button, the windows 7 PC client performs tests and reports as follows:
Problems found - file and print sharing resource (vm1.alcindorcloud.com) is online Detected but isn't responding to connection attempts.
The server is configured as a workgroup.
In the server firewall advanced settings, I have checked the file and printer sharing (SMB-In) settings and they are all enabled and all set to Allow with Override set to No. I have not changed any Server 2012 firewall rules rules apart from setting the inboud rule enabled to Yes for the Domain profile for file and printer sharing (SMB-In).

I am a novice when it comes to file servers.
1 & 1 do not provide support for any server software issues, only the virtual hardware. Once the server has booted up and is seen to be running I am on my own.

Any help would be appreciated.
LVL 2
Roger AlcindorAsked:
Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

ZamZ0Commented:
Seems like it could be a DNS problem. From a command prompt (not on the server) run nslookup VM1.alcindorcloud.com. Does the IP address match the IP address listed on the actual server if you run ipconfig? Also try the other way around: from a different machine than the server run nslookup ###.###.### with the actual IP address obtained from ipconfig on the server. Does everything match up? If not, you may need to edit/update forward and reverse lookup zones in DNS.
0

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
Roger AlcindorAuthor Commented:
As you can see, the addresses 213.165.92.6 match in each case ?
I had already pinged the server by name and also tried to connect using the ip address with the same result so I am sure that it is not a DNS issue.

Here's the results:

From the workstation :

Microsoft Windows [Version 6.1.7601]
Copyright (c) 2009 Microsoft Corporation.  All rights reserved.

C:\Users\roger>nslookup VM1.alcindorcloud.com
DNS request timed out.
    timeout was 2 seconds.
Server:  UnKnown
Address:  10.71.0.1

DNS request timed out.
    timeout was 2 seconds.
Non-authoritative answer:
Name:    VM1.alcindorcloud.com
Address:  213.165.92.6


C:\Users\roger>



From the server :

C:\Users\Administrator>ipconfig -all

Windows IP Configuration

   Host Name . . . . . . . . . . . . : s17192098
   Primary Dns Suffix  . . . . . . . :
   Node Type . . . . . . . . . . . . : Hybrid
   IP Routing Enabled. . . . . . . . : No
   WINS Proxy Enabled. . . . . . . . : No

Ethernet adapter Ethernet 2:

   Connection-specific DNS Suffix  . :
   Description . . . . . . . . . . . : Citrix PV Ethernet Adapter #0
   Physical Address. . . . . . . . . : 00-16-3E-33-41-BB
   DHCP Enabled. . . . . . . . . . . : No
   Autoconfiguration Enabled . . . . : Yes
   IPv6 Address. . . . . . . . . . . : 2001:8d8:8f1:1a00::35:368b(Preferred)
   Link-local IPv6 Address . . . . . : fe80::c982:cd85:b654:af7d%16(Preferred)
   IPv4 Address. . . . . . . . . . . : 212.227.250.15(Preferred)
   Subnet Mask . . . . . . . . . . . : 255.255.255.255
   IPv4 Address. . . . . . . . . . . : 213.165.92.6(Preferred)
   Subnet Mask . . . . . . . . . . . : 255.255.255.255
   Default Gateway . . . . . . . . . : fe80::1%16
                                       10.255.255.1
   DHCPv6 IAID . . . . . . . . . . . : 268441150
   DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-19-BA-68-A9-00-16-3E-33-41-BB

   DNS Servers . . . . . . . . . . . : 10.255.255.4
                                       10.255.255.3
   NetBIOS over Tcpip. . . . . . . . : Enabled

Tunnel adapter Local Area Connection* 12:

   Connection-specific DNS Suffix  . :
   Description . . . . . . . . . . . : Microsoft Teredo Tunneling Adapter
   Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
   DHCP Enabled. . . . . . . . . . . : No
   Autoconfiguration Enabled . . . . : Yes
   IPv6 Address. . . . . . . . . . . : 2001:0:9d38:953c:3090:1580:2a5a:a3f9(Pref
erred)
   Link-local IPv6 Address . . . . . : fe80::3090:1580:2a5a:a3f9%12(Preferred)
   Default Gateway . . . . . . . . . :
   NetBIOS over Tcpip. . . . . . . . : Disabled

Tunnel adapter isatap.{61261904-C60C-4A99-B56B-9BE6535EC911}:

   Media State . . . . . . . . . . . : Media disconnected
   Connection-specific DNS Suffix  . :
   Description . . . . . . . . . . . : Microsoft ISATAP Adapter #2
   Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
   DHCP Enabled. . . . . . . . . . . : No
   Autoconfiguration Enabled . . . . : Yes

C:\Users\Administrator>
0
ZamZ0Commented:
I don't understand what you mean by 'as you can see' because I don't see any specific reference to ip addresses. I also don't understand what you mean by you are sure it isn't a DNS issue when the first two results of that query talk about name resolution failed both times and reported a non-authoritative answer and timeout. Are you familiar with nslookup? It's a DNS troubleshooter. I think that if both times you tried (ip and hostname) failed then maybe it could be a DNS issue.
0
Problems using Powershell and Active Directory?

Managing Active Directory does not always have to be complicated.  If you are spending more time trying instead of doing, then it's time to look at something else. For nearly 20 years, AD admins around the world have used one tool for day-to-day AD management: Hyena. Discover why

Roger AlcindorAuthor Commented:
I am not familiar with nslookup so please bear with me. I thought that since I can ping vm1.alcindorcloud.com then DNS was resolving the IP address 213.165.92.6 and was therefore working. Obviously my knowledge on the subject is insufficient and I would like some further help please. As I was initially able to access the server with a browser using \\VM1.alcindorcloud.com I assumed that DNS was working. I haven't made any changes to DNS and haven't configured DNS on the server in any way yet I was able to access the server with the browser as stated above.
0
ZamZ0Commented:
Ok well I wasn't sure what you meant the first time but I'm just learning about DNS too and sometimes it will work initially but depending on the default settings that came with your set-up DNS records will probably change at set time intervals. Nslookup is like name server lookup so it is checking to see if the forward zone (like the hostname) matches the reverse zone(like the IP address) match. The way I do this is in DNS I go to forward lookup zones, I find the record in question and first use the search function to check for duplicate entries of the same ip OR hostname to see if there are any conflicts. Then open the forward lookup zone of the target with right clicking properties and if checked, uncheck the box to update the pointer file and then recheck the box and apply. If it isn't checked then just check it and apply. The hostname is kept in the forward lookup zone and the pointer is the ip in the reverse lookup zone. When you update the forward lookup zone like I said before the reverse gets updated. If for whatever reason it doesn't update right then I try creating a new pointer record manually in the forward lookup zones, which you can quickly look up as it is very straightforward. Now at each the server and client I run in cmd ipconfig/ flushdns and ipconfig /registerdns. Also, sometimes ill reload/refresh/clear cache on any sites/domains I'm working on.

This has fixed almost all DNS servers at a domain with 6 DNS servers in 3 states hosting somewhere around 200-300 pcs used mainly for basic data processing.
0
Roger AlcindorAuthor Commented:
It looks like I may need to configure a DNS server on the server. I initially used the the 1 & 1 control panel  (a web interface) to configure a reverse lookup on VM1.alcindorcloud.com for the ip address 213.165.92.6 when I purchased the additional IP address.
I will follow up when I have resoved the matter.
0
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Windows Server 2012

From novice to tech pro — start learning today.