Why Does an Exception Occur When I Log In to My Resources Managed in CBH?
Symptoms
- A black screen is displayed when a user attempts to log in to a managed resource.
- The host fails to be connected or is unreachable when a user attempts to log in to the managed resource.
- Resources managed with CBH cannot be logged in through CBH.
Possible Causes
Cause 1: The managed host responds slowly, and the network connection is abnormal.
Cause 2: The shared bandwidth of CBH does not meet user requirements.
Cause 3: The authorization of the related services on the host expires. For example, the Windows authorization expires, or the 120-day RDP service authorization expires.
Cause 4: The CBH instance and the managed host are not in the same VPC.
Solutions
Solution to cause 1
- Restart the managed host. The network recovers after the managed host is restarted. Log in to the CBH system and check the network connection between CBH and the managed host.
- If the fault persists after the host is restarted, check based on ECS Failures or Slow ECS Responses.
Solution to cause 2
- Reconfigure the bandwidth of the EIP bound to the CBH instance. It is recommended that the bandwidth be greater than 5 Mbit/s. For details about the EIP bandwidth, see How Do I Check Whether the Bandwidth Exceeds the Limit?
- Rectify the configuration and restart the CBH system.
Solution to cause 3
Renew the expired services on the managed host to obtain required authorization and log in to the managed hosts through CBH again.
Solution to cause 4
CBH can only directly manage resources in the same VPC as that of the CBH instance.
Although you can establish cross-region or cross-VPC network connections between a CBH instance and resources, such connections may be not stable enough for using the CBH system. If you really need to use CBH for cross-VPC or cross-region resource management, you can:
- Use a VPC peering connection to connect two VPCs.
- Use a Cloud Connect (CC), Virtual Private Network (VPN), or the like, to establish a cross-region network connection.
Solutions to Other Errors
If the problem persists, click Service Tickets in the upper right corner of the management console and submit a service ticket.
CBH Managed Resource Login Failures FAQs
- Why Does an Exception Occur When I Log In to My Resources Managed in CBH?
- Why Am I Seeing Login Errors of Code: T_514 When I Use a Web Browser for Resource O&M?
- Why Am I Seeing Login Errors of Code: T_1006 When I Use a Web Browser for Resource O&M?
- Why Am I Seeing Login Errors of Code: C_515 When I Use a Web Browser for Resource O&M?
- Why Am I Seeing Login Errors of Code: C_519 When I Use a Web Browser for Resource O&M?
- Why Am I Seeing Login Errors of Code: C_769 When I Use a Web Browser for Resource O&M?
- Why Cannot I See the Accessible Resources in the Resource List?
- Why Does the Session Page Fail to Load When I Log In to the Managed Host Using a Web Browser?
- Why Is the Application Resource Inaccessible through CBH?
- Why Are Databases Managed in CBH Inaccessible with an SSO Tool?
- Why Does the Number of Concurrent Sessions Reach the Limit When I Use CBH to Log In to a Host Resource?
- Why a Black Block Is Displayed on the Mouse When the MSTSC Client Is Used to Access a Server Resource?
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