address list not work at all device (the connections to microsoft exchange is unavailable)

Question

Hi

we have very serious problem with exchange 2019 from the strart in our office and is that the address list doesn't work at any pc even with the server itself(shows" the connections to microsoft exchange is unavailable") but in owa address list work fine. we have searched a lot for this problem on internet and non of them worked.

Here is what we committed already :

1.check , renew and assign exchange certificates with all possible common name and dns names specifically autodiscover name to four smtp,iis,imap,pop sevices.

2.delete the related vm completely and recovered the exchange to last available verson 'cu7' same previously domain and that works completely fine but with same issue .

3.tied exchange testconnectivty tool but because our server isn't available for public the tool started with dnsrecord errors.

4.reinstalled various versions of outlook and replace multi time the out look profile .

plz help the only solution that we got is reinstalling the whole domain!

Answer 1

Problem Solved with reinstalling whole Forest!

Answer 2

Was problem solved after reinstall the whole forest?
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Answer 3

[PS] C:\Windows\system32> get-offlineaddressbook | FL

RunspaceId : 0dc9ce5d-618d-4616-bf10-bb5e444398ba
Server :
GeneratingMailbox : ----.Local/Users/SystemMailbox{bb558c35-97f1-4cb9-8ff7-d53741dc928c}
AddressLists : {\Default Global Address List}
Versions : {Version4}
IsDefault : True
PublicFolderDatabase :
PublicFolderDistributionEnabled : False
GlobalWebDistributionEnabled : False
WebDistributionEnabled : False
ShadowMailboxDistributionEnabled : False
UseE14SortOrder : False
UseE14SortOrderOrdinal : False
UseOrdinalSortedMultivaluedProperties : True
LastTouchedTime :
LastRequestedTime :
LastFailedTime :
LastNumberOfRecords :
HttpHomeMdbLastProcessedBucket : 1000
LastGeneratingData :
MaxBinaryPropertySize : 32768
MaxMultivaluedBinaryPropertySize : 65536
MaxStringPropertySize : 3400
MaxMultivaluedStringPropertySize : 65536
ConfiguredAttributes : {OfficeLocation, ANR, ProxyAddresses, ANR, PhoneticGivenName, ANR, GivenName, ANR,
PhoneticSurname, ANR, Surname, ANR, Account, ANR, PhoneticDisplayName, ANR, DisplayName,
ANR, ExternalDirectoryObjectId, Value, ExternalMemberCount, Value, TotalMemberCount,
Value, ModerationEnabled, Value, MailboxGuid, Value, DelivContLength, Value,
MailTipTranslations, Value...}
DiffRetentionPeriod : 30
Schedule : {Sun.4:30 PM-Sun.4:45 PM, Mon.4:30 PM-Mon.4:45 PM, Tue.4:30 PM-Tue.4:45 PM, Wed.4:30
PM-Wed.4:45 PM, Thu.4:30 PM-Thu.4:45 PM, Fri.4:30 PM-Fri.4:45 PM, Sat.4:30 PM-Sat.4:45 PM}
VirtualDirectories : {}
AdminDisplayName :
FullOabDownloadPreventionThreshold : 0
ZipOabFilesBeforeUploading : False
Identity : \Default Offline Address Book
IsValid : True
ExchangeVersion : 0.20 (15.0.0.0)
Name : Default Offline Address Book
DistinguishedName : CN=Default Offline Address Book,CN=Offline Address Lists,CN=Address Lists
Container,CN=------ Complex,CN=Microsoft
Exchange,CN=Services,CN=Configuration,DC=-----,DC=Local
Guid : bd4f4802-02cd-449f-bd36-1eb80595fc7a
ObjectCategory : ------.Local/Configuration/Schema/ms-Exch-OAB
ObjectClass : {top, msExchOAB}
WhenChanged : 1/13/2019 5:43:49 PM
WhenCreated : 1/13/2019 5:35:28 PM
WhenChangedUTC : 1/13/2019 2:13:49 PM
WhenCreatedUTC : 1/13/2019 2:05:28 PM
OrganizationId :
Id : \Default Offline Address Book
OriginatingServer : PriDC.--------.Local
ObjectState : Unchanged

Answer 4

See this?

WhenChanged : 1/13/2019 5:43:49 PM
WhenCreated : 1/13/2019 5:35:28 PM
WhenChangedUTC : 1/13/2019 2:13:49 PM
WhenCreatedUTC : 1/13/2019 2:05:28 PM

Your OAB is not being updated or hasn't changed in almost two years :)

Restart the Mailbox Assistant service on the server and see if the files are regenerated and that whenchanged date is updated and try to download the OAB from Outlook.

If not:
Try creating a new Offline Address Book, its real simple and easy to test:

https://learn.microsoft.com/en-us/exchange/address-books/offline-address-books/create-offline-address-book

New-OfflineAddressBook -Name "OAB_Contoso" -AddressLists "\Default Global Address List"  

Then:
Set the mailbox database to use that new OAB:

Set-MailboxDatabase "Mailbox Database01" -OfflineAddressBook "OAB_Contoso"   

Then:
get-offlineaddressbook | update-offlineaddressbook

Then:

Restart the Mailbox Assistant service

Then:

See if the files are created for the NEW OAB under the directory for the new OAB GUID

%ExchangeInstallPath%ClientAccess\OAB\<OAB GUID>

Wait about 15 minutes, then try to download the Offline Address Book from Outlook client.

Answer 5

i did all you said and create a new oab and yes it did updated mutiple time with that command (whenchanged field) and the oab folder got updated too, everything is ok but again same error on address book and when i try download address book it doesn't gets error like before but get stucked on proccessing ...