CDP Protocol Driver missing in Device Manager

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CDP Protocol Driver missing in Device Manager

Problem Summary When a repair action is performed on the node, it causes the CDP Protocol Driver to go missing from Device Manager.
Error Message None.
Possible Cause Unknown.
Recommended Action

Do the following:

  1. Confirm the presence of cdp.sys in the location: C:\winNT\system32\drivers.
  2. Open the Registry and go to: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services.
  3. Look for the CDP entry by performing the following steps:
    • To go to Device Manager: Right-click on My Computer > Properties > Hardware tab > click the Device Manager.
    • Click on the View Menu and check the show hidden devices item.
    • From the View Menu select the Devices by connection option.
    • Right-Click on any node and select the option Scan for Hardware Changes.

Check if the CDP Driver Protocol exists. If it exists, the CDP driver should be installed.

Release Release 7.0(1)
Associated CDETS # None.

Rating: 0.0/5 (0 votes cast)

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