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specific IP address on workstation does not allow internet access but can ping web sites

Posted on 2013-12-05
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Last Modified: 2013-12-14
I have 2 IP addresses in our network that if they are assigned via DHCP or I hard code it to the PC, you cannot use a web browser (any browser) to access the internet.
Also cannot use FTP from a command prompt.
These IP addresses are in the DHCP scope. 192.168.1.100 to 192.168.1.200
I can ping web sites, nslookup websites, and tracert web sites with no issue from a command prompt.
I also have no issues with internal web servers or drive mappings.
It is only internet browsing.
No messages on the firewall of this IP being blocked. (can see the pings)
No error messages in DHCP or DNS logs.

At a complete loss as to what is blocking this IP from accessing HTTP and FTP
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Question by:vbcosupport
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Expert Comment

by:dmwynne
ID: 39698884
Just a question, you've assigned these IP addresses to multiple machines and had the same issue?
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Author Comment

by:vbcosupport
ID: 39698901
Yes.
PCs and Macs also.
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Expert Comment

by:dmwynne
ID: 39698917
I'm assuming no proxy server or you would have mentioned it.  Have you tried deleting the PTR and A record in DNS, then run an ipconfig /registerdns from the machine.
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Author Comment

by:vbcosupport
ID: 39698953
Correct. No Proxy server.
Deleted the records and registered DNS with no success.

:(
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Expert Comment

by:dmwynne
ID: 39698961
Can you telnet to google on port 80:

telnet 173.194.36.41 80
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Author Comment

by:vbcosupport
ID: 39698999
No. I get a line under the command that looks like this and then it goes back to a C:\

telnet 173.194.36.41 80
173.194.36.41... :
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Assisted Solution

by:dmwynne
dmwynne earned 1500 total points
ID: 39699005
Do you see anything in firewall for port 80 for this IP?
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Author Comment

by:vbcosupport
ID: 39699250
Working with firewall company to verify it is or is not an issue there. Will update shortly.
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Accepted Solution

by:
vbcosupport earned 0 total points
ID: 39699491
ok...turns out it was a corrupt record in our ARP table. The MAC Address for the IP address was not correct. Odd in itself. Refreshed ARP tables and system can now browse the internet.

now to figure out why the records are getting corrupt.

Smart phones and tablets?
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Author Comment

by:vbcosupport
ID: 39699973
I've requested that this question be closed as follows:

Accepted answer: 0 points for vbcosupport's comment #a39699491
Assisted answer: 500 points for dmwynne's comment #a39699005

for the following reason:

dmwynne was a great help in troubleshooting this issue.
Thanks!!
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Expert Comment

by:masnrock
ID: 39699949
It is an ip conflict. You might want to kill off any existing leases involving those addresses.
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Expert Comment

by:dmwynne
ID: 39699974
I think the user meant to give solution to dmwynne not assisted.
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Author Closing Comment

by:vbcosupport
ID: 39718527
Weird corruption in ARP table.
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