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mc3mcintyre
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No Internet, but do have Network

I have a server that is Windows Server 2012 R2.  It is connected to our network and I am able to remote control it.  It is also able to connect to our network shared drives.  However, it doesn't have access to the Internet.  I don't know why this is happening or how to solve it.
Windows Server 2012Networking Hardware-Other

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mc3mcintyre

8/22/2022 - Mon
becraig

It might simply be a matter of no public dns resolution.


Try the following

nslookup www.google.com 

If you get a result then your dns is working so try a trace route to see where it dies (if at all)
tracert www.google.com
Seth Simmons

is the gateway defined/correct?
any firewall blocking server traffic?
mc3mcintyre

ASKER
I don't get any errors.  Just a list of several IP addresses.
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James Murphy
mc3mcintyre

ASKER
Yes, the gateway is correct.  Our internal DNS servers are working properly.  No, there is no running firewall on the server.
Seth Simmons

did you do a tracert as was suggested?
Arvo Paukkunen

This may sound too simple, but have you check you firewall settings on your server box and on your Network?
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mc3mcintyre

ASKER
Yes, the Tracert stops right after our gateway firewall.  But I don't understand why.  This server is configured just like the rest of our servers.  They all have Internet access but this one.  Nothing on the gateway firewall should be blocking it.
mc3mcintyre

ASKER
Arvo, yes.  The Windows firewall is disabled.  As I mentioned in my previous post, there is nothing on the network (gateway) firewall that is programmed to block this server from getting out.
Seth Simmons

what is right after your gateway firewall?  something with your isp or beyond that?
what does tracert show for other sites?  does it stop at the same place or different?
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William Peck
mc3mcintyre

ASKER
Tracert show the same results for other sites.
Our ISP's modem is after the firewall.
mc3mcintyre

ASKER
If I change the IP address, I do get Internet.  This shouldn't be a matter of an IP conflict, because that would cause other problems.  This IP address used to be used by a server that was long decommissioned.
Seth Simmons

something about that IP address the modem is blocking
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Robert Retzer

try flushing the dns and releasing and renewing your ip address.
mc3mcintyre

ASKER
I've already flushed the DNS multiple times too.  Didn't work.
mc3mcintyre

ASKER
I just rebooted the modem.  That didn't seem to help either.  It looks like I might have to call our ISP to see if they can troubleshoot our modem.
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fblack61
mc3mcintyre

ASKER
No go with the ISP.  They insist that the "modem" is just a Layer 2 Fiber Optic switch.  It doesn't handle any of the internal IP's, which makes sense in a way.  But it still doesn't explain why this one internal IP cannot get out.  I have even had a senior network engineer look at all of the settings on the firewall.  There is nothing on the firewall that would be blocking it.
tolinrome

go into your dns server and see if there is a record for the problem IP and delete it. I would then restart the DNS server service and then add a new dns record for the problem IP and see if that works.
mc3mcintyre

ASKER
Tolinrome, thanks for the suggestion, but that didn't work either.
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tolinrome

Are you sure that the problem IP is configured correctly? Is the problem IP on the same subnet as the other IP's that can receive internet access?
Try putting the problem IP on anoher workstation\server and see if you can get internet access or not. At least that will tell you if its the IP for real or the server.
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mc3mcintyre

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