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Can only access BT site!!

Posted on 2010-09-02
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Last Modified: 2013-12-14
SBS2008, with a douzen clients

All computers can only access BT websites and no-one else. All other sites just time out. The strange thing is that DNS is working fine. I can resolve and ping Google, the BBC etc and get a quick response time

Site picks up email via POP. Can ping the POP server, but can not collect email. Connection times out

Strangely, I can connect to the site remotely via it's remote access site, and VPN

Have been on to BT, and they say "It's not us!" But it must be them don't you think?
Any one seen this before

Thanks
Jim
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Question by:jimxox
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6 Comments
 
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Expert Comment

by:bobalob
ID: 33585205
Hi Jim,

How is your site connected to the internet? It does sound like a BT problem, but it *might* be something local doing it.
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Author Comment

by:jimxox
ID: 33585226
the site is connected to the Internet via a BT supplied ADSL router set to automatically pick up external IP automatically, as is DNS.
No Proxy used on site
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Expert Comment

by:bobalob
ID: 33585289
is the pop server a BT server too? can you ping google?
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Author Comment

by:jimxox
ID: 33585322
Pop is at a different supplier. Can ping the POP server, but no email!

Can ping Google ok, but no web page shown

Have seen something like this once before, when the bill had not been paid. I suspect that BT have screwed up and put the account on hold even though they say they haven't
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Accepted Solution

by:
bobalob earned 2000 total points
ID: 33585536
does DNS resolve to the correct addresses? ie. if you ping www.google.co.uk:

G:\>ping www.google.co.uk

Pinging www-tmmdi.l.google.com [173.194.37.104] with 32 bytes of data:

and it comes back with an alias like www-tmmdi.l.google.com then DNS is resolving correctly - just thinking BT may be spoofing the DNS.

you could try "telnet mailserver.mail.com 110" to see if a connection can be established at all.
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Author Comment

by:jimxox
ID: 33587089
BT's automatic DNS server settings were the issue.

Set DNS to manual and it kicked right in.

BT's available DNS servers are (given to me by BT helpdesk):

194.72.9.34
194.72.9.38
194.74.65.68
194.74.65.69
194.72.0.98
192.72.0.114
62.6.4.162
62.6.4.178
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