Problem with Global Address book and Autodiscovery after exchange migration

I have installed 2 server(1 AD + 1Exchange2013) in my existing SBS2011 with Exchange 2010 Environment. Having 2 problems,
1. When configuring outlook i have to type old exchange server name then it resolves to new server name, if i type new server name it does not configure outlook.
2. i have moved 2 mailboxes to new server email flow is working fine. but when i go to global address book it says connection ot Microsoft exchange unavailable.
Appreciate your help
A KhanAsked:
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I think that both of your problems are tied to autodiscover problems and I'm pretty sure that after you finish your migration everything will work fine. Just don't forget about autodiscover configuration, right certificates and to redirect https to new server.
You can help yourself with right click the Outlook system tray icon and choose test mail autoconfiguration or with for outside testing. But firstly check if all exchange services are running...
A KhanAuthor Commented:
thanks Davorin,

still not sure what i am doing wrong, tested autodiscovery url and the both setup properly. Checked all settings for autodiscovery it looks fine, not sure where i am doing wrong. Please see pics of result done by test mail autoconfiguraiton.
A KhanAuthor Commented:
i have also noticed that Connected Status is showing Directory Service disconnected,  not sure if that has anything to do with my 2nd problem. Please see pics attached.
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Do you have differently specified RCP encryption on  servers? You can try to toggle encryption settings in outlook.
Look at this KB for more info:

Do you have any errors in event log?
A KhanAuthor Commented:
Thanks Davorin,

i have tried that option but didnt work.

there is no event log in client computer but on mail server there are couple of warnings, attaching that warning.
A KhanAuthor Commented:
sorry forget to attach, attaching now.
The error is about smtp receive connector authentication and it is not related to your basic problem.
For migration have you used Exchange server deployment assistant and have you completed all steps?
A KhanAuthor Commented:
Hi Davorin,

Yes i have used MS Deployment Assistant, and followed all steps. except post migration task.
A KhanAuthor Commented:
i just purchased a certificate from 3rd party now and deployed it, and i solved the 2nd problem.
Can you please also test autodiscover with the link I have posted before -
Create a new test account,  which can be deleted at the end of the testing.
If autodiscover is working properly, you would not need to enter server name in the outlook config.

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A KhanAuthor Commented:
not complete answer but helpful towards solution
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