How to Solve V2021.06 MB SD C4/C5 HHT-WIN Internal Fault Code

Problem:
HHT launches properly from DAS but gives me message COM port in use! Close other application! I tried restarting, then running HHTPKW directly, same problem. If I disconnect the mux (sd connect C4) I get “Internal fault diagnostic multiplexer code 10766”
How to Solve MB SD C4C5 HHT-WIN Internal Fault Code -1

CnAutotool.com Solution:

1.Click start menu,choose windows Administative. Find and run Hyper-V manger in Windows Administrative Tools
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2.Select Virtual Switch Manager
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3.Select Ether and press OK
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4.Select your external network connection type
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5.Open Network & Internet Settings
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6.Select Ethernet- Change adapter options
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7.Select vEtherent and Properties
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8.Double click Internet Protocol Version 4 (TCP/IPv4) and press OK to save
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9.Go to IP address setting.
Set IP address as following
IP address: 172.29.127.124
Subnet mask: 255.255.0.0
Save setting.
How to Solve MB SD C4C5 HHT-WIN Internal Fault Code -11
Now MB SD Connect C4 HHT-WIN software should be working fine.