OAB Issues on Exchange 2010

We are having issues with the OAB at the moment this works fine for 2003 but not for 2010 users

2003 – Single Server
2010 – Two Servers

OAB URL is configured to https://mail.domain.co.uk/OAB for internal and external

Autodiscover works fine internally

To reproduce an error I go to Send Receive Groups > Download Address Book and get the error | Task user@domain.co.uk reported error (0x8004010F) : The operation failed. An object cannot be found

No redirects are in place within IIS and Web.configs were cleared to confirm no settings were left from previous re-directs

I can browse to https://mail.domain.co.uk/OAB and I get access denied error which I believe is normal

I have looked in IIS and there are no folders under OAB which doesn’t seem right..

OAB Generation is on Exchange 2010 and both servers are selected under the Distribution tab

Any idea’s?
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StuartTechnical Architect - CloudAsked:
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Miguel Angel Perez MuñozCommented:
If you have a proxy to internet access, must be bypassed to download OAB: https://support.microsoft.com/en-us/kb/939765
StuartTechnical Architect - CloudAuthor Commented:
No proxy internet access direct through the firewall
Zacharia KurianAdministrator- Data Center & NetworkCommented:
Please verify that you have at least one OAB in your exchange 2010 environment by running the below command.

get-offlineAddressBook

 In case it doesn't show any OAB then you will have to create at least one OAB using the below command.

new-offlineAddressBook

Zac
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Amit KumarCommented:
Can you check if Client settings in DB's property has Offline address book assigned?

Open EMC-->Organization Configuration--> Database management --> Righ Click on DB-->Open Properties --> go to Client settings tab--> Offline Address book.

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StuartTechnical Architect - CloudAuthor Commented:
Spot on as always Amit. Thank you don't know how I missed this step!
Amit KumarCommented:
Some time it happens... good to know that solution works for you
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