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The 3G Card of Huawei Cannot Be Available When the TSM Policy is Disabled in the Serial Port

Publication Date:  2012-09-12 Views:  320 Downloads:  0
Issue Description
The policy of the TSM assigned to the account is modem enabled、serial port disabled, it is not available when user plug the 3G card of Huawei
Alarm Information
Handling Process
Root Cause
The possible reason:
1、 the own fault of Huawei 3G card
2、 it is be disabled by the policy when the 3G card is be recognized as serial device

After inspecting, the reason is the 3G card is be recognized as serial device, it is not available when the policy is disabled

So conclude that Huawei 3G card is be recognized as serial device and modem device at the same time. And it causes the card unavailable when anyone is disabled in the policy, cancel the policy disabled port and the problem is solved
Avoidance measures: it is recommended the serial port policy is enabled when the Huawei 3G card exist in the device