Problem with Blackberry And Exchange 2007

Ever since the entire blackberry network took a dump a week ago, my client's two blackberry phones can send but not receive email from Exchange 2007.  NOTHING changed on the exchange server, certainly not in the past few months.  I did test my Iphone and it works just perfect, but i think Iphone uses active sync rather then exchange EWS.  In any case, i spent 5 hours on the phone with the blackberry engineer and he said that my exchange server is generating an error when he attempts a GET.  So for kicks, I tried a Test-OutlookWebServices | FL and resulted in a error 401 unauthorized under id 1013.  I also got a failure here testing it out with an error Message: The remote server returned an error: (405) Method Not Allowed.
I checked permissions and IIS setting and they look ok.  Wondering what other tests i can run or fixed i can apply to make this nightmare go away.
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Well the whole idea behind bes is that you don't use exchange to send/receive mail and as it worked prior to the outage an now doesn't I would still suspect the bes server. Is bes installed on the same server as exchange?

The owa tests are separate to bes I can't see their related.
PlatinumITSAuthor Commented:
We are not using Blackberry Enterprise Server, the phone is configured to just pull from webmail similar to the setup of hotmail.  it cant pull calendar or contacts.
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Ok so how are your blackberry devices connecting? are they using IMAP? or are they configured to use POP?
PlatinumITSAuthor Commented:
neither, we just run the wizard to enter username, email address and password and it works.  pop and impa are turned off.  so either some version of activesync or ews is used....

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PlatinumITSAuthor Commented:
Users bought iphones and dumped the crappy blackberry
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