# Cannot register new clients in Tracker Program

**URL:** <https://community.dhis2.org/t/cannot-register-new-clients-in-tracker-program/67352>\
**Category:** HIV\
**Tags:** tracker\
**Created:** [21 August 2025 03:36 UTC](https://community.dhis2.org/t/cannot-register-new-clients-in-tracker-program/67352 "2025-08-21T03:36:28Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![waiphyonaing](https://dhis2.b-cdn.net/letter_avatar_proxy/v4/letter/w/258eb7/32.png) [@waiphyonaing](https://community.dhis2.org/u/waiphyonaing)\
**Post date:** [21 August 2025 03:36 UTC](https://community.dhis2.org/t/cannot-register-new-clients-in-tracker-program/67352/1 "2025-08-21T03:36:28Z")

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Hi everyone,

We are encountering a sudden issue in our tracker program — unable to register new clients. This functionality was working well before, and we haven’t made any recent changes to the system. Now, an error message appears when we try to register.

The current version 2.41.3.

Has anyone else experienced this or know what might be causing it?

Any help or suggestions would be greatly appreciated. Thanks in advance!

 ![Screenshot (182)](https://dhis2.b-cdn.net/uploads/default/original/3X/9/f/9ffe6345997480de24292d1c076375841e1f81ae.png)

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**Author:** ![waiphyonaing](https://dhis2.b-cdn.net/letter_avatar_proxy/v4/letter/w/258eb7/32.png) [@waiphyonaing](https://community.dhis2.org/u/waiphyonaing)\
**Post date:** [21 August 2025 04:04 UTC](https://community.dhis2.org/t/cannot-register-new-clients-in-tracker-program/67352/2 "2025-08-21T04:04:28Z")

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Hi everyone,

I tried using incognito mode, and the registration worked perfectly. Then I cleared my browser cache and tested again — everything is working fine now!

Thank you all.

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**Author:** ![Gassim](https://dhis2.b-cdn.net/user_avatar/community.dhis2.org/gassim/32/35347_2.png) [@Gassim](https://community.dhis2.org/u/Gassim)\
**Post date:** [2 September 2025 14:02 UTC](https://community.dhis2.org/t/cannot-register-new-clients-in-tracker-program/67352/3 "2025-09-02T14:02:09Z")

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Thank you @waiphyonaing for sharing the solution with the community. I’m glad you found the solution.

One tip to quickly find out if there’s a browser cache is to try incognito or even better, the browser’s (Guest mode) which has a new cache for each new browser instance: [Browse Chrome as a guest - Computer - Google Chrome Help](https://support.google.com/chrome/answer/6130773)

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**Author:** ![waiphyonaing](https://dhis2.b-cdn.net/letter_avatar_proxy/v4/letter/w/258eb7/32.png) [@waiphyonaing](https://community.dhis2.org/u/waiphyonaing)\
**Post date:** [30 October 2025 02:41 UTC](https://community.dhis2.org/t/cannot-register-new-clients-in-tracker-program/67352/4 "2025-10-30T02:41:45Z")

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Thank you for your tip, Gassim