Microsoft shifts Teams and Copilot to new web domains
Microsoft is migrating its Teams and Copilot web services to new domain addresses, requiring enterprise administrators to update their firewall and network configurations to avoid service disruption.
Microsoft has begun redirecting web users of its Microsoft 365 and Teams services to new domain addresses, a transition that requires immediate action from IT administrators. Under the new system, users will be automatically routed to copilot.cloud.microsoft and teams.cloud.microsoft. The migration for Teams is already in progress, and Microsoft has officially added Microsoft 365 to the transition plan. The company detailed these updates in two MessageCenter notifications, specifically MC1465764 and MC1462915.
To prevent connectivity issues, organizations must review and update their network configurations. This includes modifying settings on client devices, proxies, firewalls, secure web gateways, and other enterprise network controls. Microsoft warns that failure to align environments with the recommended network requirements for Microsoft 365 Copilot could block user access. For enterprises that previously blocked the new Copilot domain to stop employees from accessing personal accounts, Microsoft recommends using its TenantRestrictions control instead.
The technology giant expects to complete all redirects by early October. Organizations facing technical hurdles that prevent them from meeting this deadline are advised to contact their Microsoft account representative for assistance. While Microsoft is offering limited exceptions for the Teams redirect until December 31, 2026, no further delays or extensions will be granted after that date. Network administrators must act quickly to ensure seamless access to these essential collaboration and productivity tools.
This is our own summary of reporting by Computerworld AI
