Strange issues accessing youtube

bdhtechnology
bdhtechnology used Ask the Experts™
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We have a network where no one can access YouTube.  DNS is returning a bogus IP address and I cannot figure out where it is coming from (see nslookup below).  The response is not from Google's Public DNS server but from something else that must be in the middle of the lookups.  How can we determine where this bogus address is being returned from?  The firewall is a Cisco ASA, but I see nothing enabled there that would cause these types of issues.

C:\Users\Administrator>nslookup -debug www.youtube.com 8.8.8.8
------------
Got answer:
    HEADER:
        opcode = QUERY, id = 1, rcode = NOERROR
        header flags:  response, want recursion, recursion avail.
        questions = 1,  answers = 1,  authority records = 0,  additional = 0

    QUESTIONS:
        8.8.8.8.in-addr.arpa, type = PTR, class = IN
    ANSWERS:
    ->  8.8.8.8.in-addr.arpa
        name = google-public-dns-a.google.com
        ttl = 21599 (5 hours 59 mins 59 secs)

------------
Server:  google-public-dns-a.google.com
Address:  8.8.8.8

------------
Got answer:
    HEADER:
        opcode = QUERY, id = 2, rcode = NOERROR
        header flags:  response, want recursion, recursion avail.
        questions = 1,  answers = 1,  authority records = 0,  additional = 0

    QUESTIONS:
        www.youtube.com, type = A, class = IN
    ANSWERS:
    ->  www.youtube.com
        internet address = 208.70.74.21
        ttl = 0 (0 secs)

------------
Non-authoritative answer:
------------
Got answer:
    HEADER:
        opcode = QUERY, id = 3, rcode = NOERROR
        header flags:  response, want recursion, recursion avail.
        questions = 1,  answers = 0,  authority records = 0,  additional = 0

    QUESTIONS:
        www.youtube.com, type = AAAA, class = IN

------------
Name:    www.youtube.com
Address:  208.70.74.21

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Pete LongTechnical Consultant
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