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lync phone can't sign in

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SBA account, lync phone can't use PIN to sign-in suddenly.

I re-run the dhcp util to setup to DHCP options. Test-CsPhoneBootstrap on powershell have below error.

Could not get a web ticket.

CHECK:
- Web service url is valid and the web services are functional
- If using PhoneNoPIN to authenticate, make sure they match the user uri
- If using NTLMKerberos auth, make sure you provided valid credentials

try to reset pin for the common area phone but still failed to sign-in.

Thursday, May 19, 2016 1:44 PM

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If it works before and you don't have change configuration, it looks like a problem from the webservice.If you run dhcputil.exe -emulateclient, you get all information back from DHCP?

You can try to run the deployment Wizzard again on the FE to repair the webservices.

regards Holger Technical Specialist UC
- Proposed as answer by Eason Huang Monday, May 23, 2016 1:52 AM
- Marked as answer by Eason Huang Sunday, May 29, 2016 12:32 PM
Friday, May 20, 2016 4:37 AM

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If it works before and you don't have change configuration, it looks like a problem from the webservice.If you run dhcputil.exe -emulateclient, you get all information back from DHCP?

You can try to run the deployment Wizzard again on the FE to repair the webservices.

regards Holger Technical Specialist UC
- Proposed as answer by Eason Huang Monday, May 23, 2016 1:52 AM
- Marked as answer by Eason Huang Sunday, May 29, 2016 12:32 PM
Friday, May 20, 2016 4:37 AM
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Hi,

Please also try to rerun step 2 and 3 on SBA Server to test the issue.

Best Regards
Please remember to mark the replies as answers if they help, and unmark the answers if they provide no help. If you have feedback for TechNet Support, contact tnmff@microsoft.com.
Eason Huang
TechNet Community Support

Wednesday, May 25, 2016 8:53 AM