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new operating system and no CTC

phill00011
Beginner
Beginner

We just updated to windows 7 pro 32 bit and now we can not communicate with the ONS 15454.

It worked fine with XP but now all it does when you run CTC is just sit there and give you no log in.

1 Accepted Solution

Accepted Solutions

Ryan Gadwood
Cisco Employee
Cisco Employee

Hi phill00011,

 

Windows 7 requires autotuning to be disabled in order to run CTC. Please see below for instructions.

 

http://www.cisco.com/en/US/docs/optical/15000r9_2/dwdm/procedure/guide/454d92_ctcoperation.html#wp204480

Complete the following steps to Disable TCP Autotuning:

a. From the Windows Start menu, click Search > Search for Files and Folders. The Search window appears.

b. On the right side of the window in the Search box, type Command Prompt and press Enter. Windows will search for the Command Prompt application and list it in the search results.

c. Right click cmd and select Run as administrator.

d. Enter the administrator user ID and password and click OK.

e. A Command prompt windows appears. At the command prompt enter the following text:

netsh interface tcp set global autotuninglevel=disabled

 

 

Autotuning can be enabled if desired using the following command:

netsh interface tcp set global autotuninglevel=normal

 

shows status of autotuning

netsh interface tcp show global

 

Thanks,

 

Ryan

View solution in original post

2 Replies 2

Ryan Gadwood
Cisco Employee
Cisco Employee

Hi phill00011,

 

Windows 7 requires autotuning to be disabled in order to run CTC. Please see below for instructions.

 

http://www.cisco.com/en/US/docs/optical/15000r9_2/dwdm/procedure/guide/454d92_ctcoperation.html#wp204480

Complete the following steps to Disable TCP Autotuning:

a. From the Windows Start menu, click Search > Search for Files and Folders. The Search window appears.

b. On the right side of the window in the Search box, type Command Prompt and press Enter. Windows will search for the Command Prompt application and list it in the search results.

c. Right click cmd and select Run as administrator.

d. Enter the administrator user ID and password and click OK.

e. A Command prompt windows appears. At the command prompt enter the following text:

netsh interface tcp set global autotuninglevel=disabled

 

 

Autotuning can be enabled if desired using the following command:

netsh interface tcp set global autotuninglevel=normal

 

shows status of autotuning

netsh interface tcp show global

 

Thanks,

 

Ryan

Thanks Ryan works great. phill00011

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