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Browser fails to display websites

Posted on 2014-04-09
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Last Modified: 2014-04-10
Network Diagram
Hi,
  I have an existing SBS2011 network with 192.168.2.x and all is working fine.
  I am currently setting up another SBS2011 network for a customer. Since I needed an internet access, I put this new SBS2011 and one PC under another Internet router (192.168.1.1) under current DLink router (192.168.2.1).
  In fact this new SBS2011 will replace SBS2003 with same IP network (192.168.1.1).
  So I thought I could create a real environment (192.1687.1.x) in my lab and set up everything before delivering the SBS2011 to my customer.
  Things work mostly fine except the internet access.
  I am having a hard time surfing the Internet from both SBS2011 and PC1.
  Google is just about the only website that comes up ok. Other websites like Yahoo will take forever and most websites won't even come up.
  The funny thing is I have installed LogMeIn Remote access program on both SBS2011 and PC1 (in 192.168.1.x network) and I can access them w/o a problem from anywhere.
  I tried to connect to a terminal server from these computers by entering the domain name in Remote Desktop and it failed, but if I used IP address, it worked.

  Basically it fails to resolve xxx.com into IP address, I think.
 
  Thanks for your help in advance.
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Question by:sglee
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KJ70 earned 500 total points
ID: 39990638
It is definitely a DNS resolution problem.  Does the ISP provide a DNS server address?  Your SBS are using their own IP address for DNS. Which is fine as long as the DNS server on each machine is setup and working correctly.  Another option is to use Google public DNS servers 8.8.8.8 and 8.8.4.4. While each machine on your network won't have a DNS name every other website should work.  

Hth,
KJ70
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Author Comment

by:sglee
ID: 39991240
"Does the ISP provide a DNS server address? "--->  Yes. The DLink that is connected to the Cable Internet receives DNS address like below:

Here is DLink WAN and LAN Status
IP Address :   65.60.x.x
Subnet Mask :   255.255.248.0  
Default Gateway :   65.60.x.x
Primary DNS Server :   204.194.232.200  
Secondary DNS Server :   204.194.234.200

LAN
IP Address :   192.168.2.1  
Subnet Mask :   255.255.255.0  
DHCP Server :   Disabled  

Here is WAN and LAN setting of the 2nd Router connected to DLink Router above.
IP address   192.168.2.100  
Subnet Mask   255.255.255.0  
Default Gateway   192.168.2.1  
Primary DNS   192.168.2.4  

LAN:
IP address    192.168.1.1  
 Subnet Mask    255.255.255.0  
 DHCP Server    Disabled
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Author Comment

by:sglee
ID: 39991255
Revised IP Configruation of SBS2011
I assigned ISP provided DNS addresses in SBS2011 of 192.168.1.x network in replacement of 192.168.1.2.

Primary DNS Server :   204.194.232.200  
Secondary DNS Server :   204.194.234.200

And it works. I can visit any website. Thanks for your help.
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Expert Comment

by:KJ70
ID: 39991316
The ip address is the same for the router #2 and pc one on the first section ( 2.100 ).  

This should cause an ip conflict. Not allowing router2 to receive all the packets.  But let's assume that is not the case.  

From clients SBS:

Step 1) ping 192.168.2.1  
          If not successful routing issue.

Step 2) ping www.google.com
         If not successful either Internet or DNS.

Step 3) ping 8.8.8.8
         If successful  and Google ping fails. DNS
         If fails. Internet

My gut instinct says the problem is DNS.  In which I would change the SBS server to use 8.8.8.8 instead of itself.

Let me know,
KJ70
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Expert Comment

by:KJ70
ID: 39991321
Lol... Disregard  ... You are most welcome.

Hope you have a great day,
KJ70
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