Hello Deep Gosai, welcome to Microsoft Q&A forum.
Please understand that Surface Hub troubleshooting falls outside standard forum support due to its specialized setup—firmware and MDM quirks make it best handled by experts.
Please reach out to Surface Business/Education Support for tailored help: https://learn.microsoft.com/en-us/surface/contact-surface-business-education-support.
I hope this points you to the right direction.
Note: "Support for Surface Hub 2S devices running Windows 10 Team edition ends on October 14, 2025. To avoid service disruption, we recommend using the seamless software migration option to move to Microsoft Teams Rooms on Windows at any time before the end of support."
Unlike the standard versions of Windows 10, there's no extended support option for Windows 10 Team edition when support ends."