Hello Amit,
There is no Microsoft-defined "standard" RDP connection time. In a healthy LAN environment, an RDP session typically establishes within 1 to 5 seconds. Across a WAN or VPN, 5 to 15 seconds is generally considered normal, depending on latency, authentication methods, GPO processing, profile loading, and network conditions.
If initial logon consistently exceeds 20-30 seconds, it's usually worth investigating DNS resolution, domain controller responsiveness, FSLogix/User Profile loading, GPO processing, certificate validation, or network latency.
For troubleshooting, compare the time spent in:
- Network connection phase
- Authentication (NLA/CredSSP)
- User profile loading
- Group Policy processing
A successful RDP connection should normally complete in only a few seconds; there is no official SLA or fixed Microsoft standard for connection time.
Harry.