Common reasons why a client fails to join a channel-Real-Time Communication(RTC)-阿里云帮助中心

This topic describes common reasons why a client fails to join a channel and explains how to resolve these issues.

How to obtain the parameters required to join a channel

You must obtain the parameters required to join a channel from your AppServer. For more information, see Generate a token on the server-side.

For RTS SDK versions earlier than 1.9, the sessionID field can be an empty string. This field is removed in version 1.9 and later.

Error code	Description
33620485	Failed to join the channel: The token is invalid. Regenerate the channel authentication token (Token). For more information, see Use a token for authentication.
33620483	Failed to join the channel: The channel has expired. A channel is valid for 48 hours. Regenerate the channel authentication token (Token). For more information, see Use a token for authentication.