Note:
This topic has been translated from a Chinese forum by GPT and might contain errors.
Original topic: dashboard登录失败
[TiDB Usage Environment] Testing
[TiDB Version] v7.1.2
[Reproduction Path] What operations were performed when the issue occurred
[Encountered Issue: Dashboard login error]
[Resource Configuration]
Try restarting the PD instance.
The same error, refer to this post.
Is the deployment of PD mixed with TiDB? What is the network configuration for load balancing?
Which password is used during deployment, and which password should be used to log in?
Have you enabled passthrough? According to other posts, enabling passthrough causes this issue, but you can log in to the dashboard if it’s disabled.
Manually log in to the PD node where the dashboard is located to see if you can log in normally.
Have you installed HAProxy? Is it a mixed deployment?