# Error in REST https call to get the Auth token

**URL:** <https://community.f5.com/t/error-in-rest-https-call-to-get-the-auth-token/74296>\
**Category:** Technical Forums\
**Tags:** rest, api\
**Created:** [April 4, 2024, 8:08am UTC](https://community.f5.com/t/error-in-rest-https-call-to-get-the-auth-token/74296 "2024-04-04T08:08:37Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![srinidhi12](https://avatars.discourse-cdn.com/v4/letter/s/ecd19e/32.png) [@srinidhi12](https://community.f5.com/u/srinidhi12)\
**Post date:** [April 4, 2024, 8:08am UTC](https://community.f5.com/t/error-in-rest-https-call-to-get-the-auth-token/74296/1 "2024-04-04T08:08:37Z")

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Hi All,

I am using F5 14.1.5.6 version of F5 and trying to get auth token from

**/mgmt/shared/authn/login**

But getting 401 error, please find the detailed error message. Can any one help me with this issue.

[{“code”:401,“message”:“Unable to process request /tm/auth/source. Service is unavailable.”,“referer”:“10.3.4.112”,“restOperationId”:343185765,“kind”:“:resterrorresponse”}]

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**Author:** ![Ben\_Novak](https://d1p9zq3aats0t8.cloudfront.net/user_avatar/community.f5.com/ben_novak/32/3722_2.png) [@Ben\_Novak](https://community.f5.com/u/Ben_Novak)\
**Post date:** [April 4, 2024, 1:49pm UTC](https://community.f5.com/t/error-in-rest-https-call-to-get-the-auth-token/74296/2 "2024-04-04T13:49:41Z")

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The service may be having issues.&nbsp; I suggest a reboot or even a support ticket.