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Members servers can't connect to web
Please see my related post at https://www.experts-exchange.com/questions/28528671/Dead-2003-DHCP-server-Can-I-use-my-2008-R2-DC.html?anchorAnswerId=40354764#a40354764
My other members servers can't connect to the web. I don't see anything wrong. Here's the config on one of them. They aren't using DHCP.
I did add those servers to the dhcp reservation. I double-checked the mac address in the reservation. Would that have affected it?
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
IPv4 Address. . . . . . . . . . . : 10.0.0.204(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . : 10.0.0.5
DNS Servers . . . . . . . . . . . : 10.0.0.200
NetBIOS over Tcpip. . . . . . . . : Enabled
My other members servers can't connect to the web. I don't see anything wrong. Here's the config on one of them. They aren't using DHCP.
I did add those servers to the dhcp reservation. I double-checked the mac address in the reservation. Would that have affected it?
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
IPv4 Address. . . . . . . . . . . : 10.0.0.204(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . : 10.0.0.5
DNS Servers . . . . . . . . . . . : 10.0.0.200
NetBIOS over Tcpip. . . . . . . . : Enabled
SOLUTION
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ASKER CERTIFIED SOLUTION
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ASKER
Hello hypercat,
I much appreciate your quick and helpful response. I'm a part-time admin so I hope you don't mind walking me through.
As I mentioned in my other post, my dhcp server died. I added a new dhcp server yesterday, so I think that's a factor. That and or like you said, my dns server.
I did the browse and nslookup. Let me know if you need more info.
nslookup www.google.com
Server: d2j7jsr1.rnsha.com
Address: 10.0.0.200
Non-authoritative answer:
Name: www.google.com
Addresses: 2607:f8b0:4007:805::1014
74.125.224.115
74.125.224.116
74.125.224.114
74.125.224.112
74.125.224.113
What should I check next?
I much appreciate your quick and helpful response. I'm a part-time admin so I hope you don't mind walking me through.
As I mentioned in my other post, my dhcp server died. I added a new dhcp server yesterday, so I think that's a factor. That and or like you said, my dns server.
I did the browse and nslookup. Let me know if you need more info.
I can't browse via 64.233.183.103
Here's the nslookup response.
nslookup www.google.com
Server: d2j7jsr1.rnsha.com
Address: 10.0.0.200
Non-authoritative answer:
Name: www.google.com
Addresses: 2607:f8b0:4007:805::1014
74.125.224.115
74.125.224.116
74.125.224.114
74.125.224.112
74.125.224.113
What should I check next?
SOLUTION
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ASKER
I browsed to http://74.125.224.115, the Google search page. It worked.
This is bizarre... and frustrating.
The subject server can now (at least for now) browse via the domain names e.g. www.google.com, news.google.com
The ability to browse or not seems to be happening sporadically at various clients, including the member servers. Sometimes it works. Sometimes it doesn't.
I should add that the crashed dhcp server options had a voip server entry that I set when we installed the voip phone system a few years back. The phone installer had me reserve addresses for their voip server and voip switch. In addition, he had me enter some info into our dhcp server. I only have a picture of the entry (attached). The picture shows the following:
Server Options, General tab, Available options, the entry says: 156 VoIP FTP Server. Under Data entry, String value, it says: ftpservers=10.0.0.100.
10.0.0.100 is their VoIP server, which is a desktop computer sitting in our rack.
I don't remember how I entered it. I may have created a registry entry for this because I don't see it when browsing the Server Options, General tab on the new dhcp server.
I don't know if it has any bearing on the problem but I mention the above because the phones are also on dhcp. The voip server and switch were both connected to the lan while I installed the new dhcp server. I think they are getting leases.
I didn't do your last test yet, i.e. change the configuration on one of your workstations to remove the external DNS server addresses so that the only DNS server address it has is the 10.0.0.200 one.
IMG00000441.PNG
This is bizarre... and frustrating.
The subject server can now (at least for now) browse via the domain names e.g. www.google.com, news.google.com
The ability to browse or not seems to be happening sporadically at various clients, including the member servers. Sometimes it works. Sometimes it doesn't.
I should add that the crashed dhcp server options had a voip server entry that I set when we installed the voip phone system a few years back. The phone installer had me reserve addresses for their voip server and voip switch. In addition, he had me enter some info into our dhcp server. I only have a picture of the entry (attached). The picture shows the following:
Server Options, General tab, Available options, the entry says: 156 VoIP FTP Server. Under Data entry, String value, it says: ftpservers=10.0.0.100.
10.0.0.100 is their VoIP server, which is a desktop computer sitting in our rack.
I don't remember how I entered it. I may have created a registry entry for this because I don't see it when browsing the Server Options, General tab on the new dhcp server.
I don't know if it has any bearing on the problem but I mention the above because the phones are also on dhcp. The voip server and switch were both connected to the lan while I installed the new dhcp server. I think they are getting leases.
I didn't do your last test yet, i.e. change the configuration on one of your workstations to remove the external DNS server addresses so that the only DNS server address it has is the 10.0.0.200 one.
IMG00000441.PNG
Not sure this will fit exactly your situation with the voice VLAN, but here's an example of how to set the DHCP options for VOIP:
http://www.virtuallyimpossible.co.uk/%ef%bb%bfpredefined-dhcp-options-for-voip-on-server-2008-r2/
http://www.virtuallyimpossible.co.uk/%ef%bb%bfpredefined-dhcp-options-for-voip-on-server-2008-r2/
ASKER
hello hypercat,
Thanks for the suggestion. This one pertains to our need: http://community.spiceworks.com/how_to/show/93302-shoretel-configuring-dhcp-scope-option-156-in-windows-server-2008-r2
Still, our phone installer is coming in to help resolve that.
Thanks for the suggestion. This one pertains to our need: http://community.spiceworks.com/how_to/show/93302-shoretel-configuring-dhcp-scope-option-156-in-windows-server-2008-r2
Still, our phone installer is coming in to help resolve that.
SOLUTION
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ASKER
Hi hypercat,
The majority of issues seem to be resolved. Please see my last post on
The majority of issues seem to be resolved. Please see my last post on
Dead 2003 DHCP serverhttps://www.experts-exchange.com/questions/28528671/Dead-2003-DHCP-server-Can-I-use-my-2008-R2-DC.html
SOLUTION
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To access this solution, you must be a member of Experts Exchange.
ASKER
I'd like to thanks everyone's help, particularly hypercat, for the detailed responses. In the end, I don't know which fixed it exactly but it seemed to be a combination of power cycling the ISP's modem, our firewall, reseating cables to same, and power cycling the switches.
Aloha!
Aloha!
ASKER
.5 is Gateway is the firewall
I can ping .5 and .200.
Here's an xp client that works. It uses dhcp:
Dhcp Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
IP Address. . . . . . . . . . . . : 10.0.0.32
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . : 10.0.0.5
DHCP Server . . . . . . . . . . . : 10.0.0.200
DNS Servers . . . . . . . . . . . : 10.0.0.200
64.129.2.4
64.129.2.5