How to fix the 720 Mobile Broadband error win8.1

How to fix the 720 Mobile Broadband error win8.1

This problem was found online for a long time.

Symptom: the error 720 is displayed for the bandwidth connection. In the Device Manager, WAN micro port (Network Monitor), wan micro port (ip), and wan micro port (ipv6) are yellow exclamation points.

Cause: It is preliminarily estimated that there is a problem with telecom flash, and there will be residue after the detachment.

Solution:

1. Press Win + R in standby mode

2. Enter REGEDIT and press enter to open the Registry Editor.

3. Find the following registry subkeys:

HKEY_LOCAL_MACHINE \ SYSTEM \ CurrentControlSet \ Control \ Class \ {4D36E972-E325-11CE-BFC1-08002BE10318}

There will be several sub-items consisting of four digits

For example, 0000 and 0001

4. Find each sub-item one by one and find the Sub-item with the "DriverDesc" value on the right as "WAN micro port (Network Monitor. Note that there may be multiple.

5. Change the value of Characteristics in each subitem from 29 to 9.

6. Follow Steps 4 and 5 to change the wan (ip) and wan (ipv6) subitem of the response.

7. Uninstall the problem item in the Device Manager. (Important)

8. Scan for hardware changes again.

Certainly can solve, not add me qq: 376720513

Www.sltianxia.com