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server 2008 sbs Broadband Slow when dns is online

I have a server 2008 SBS server - when the DNS is switched off the broadband responds perfectly response time 32ms when pinging Google. when you enable DNS server the broadband goes really slowly 500 to 600ms as soon as I disable it again the connection returns to normal.

I have tried removing the forwarders and adding the 8.8.8.8 but still no difference I have. Any ideas what could be causing this.
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arcitsol
Asked:
arcitsol
  • 2
1 Solution
 
smckeown777Commented:
Post output of

ipconfig /all

from both your server and 1 client
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David AtkinIT ProfessionalCommented:
Set the DNS forwards to your ISP's if you haven't already.

SBS needs to be the DNS Server.

in addition to the previous posts, please can you also do an nslookup for google.com from the client and past the output.
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arcitsolAuthor Commented:
Hi This was due to the ISP adding a restriction the the customer account for non payment. Once that was lifted all worked ok.
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arcitsolAuthor Commented:
sorted myself
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