Legal Notices | Privacy Policy
Site Map | Refund Policy
Copyright © 1995 -
VanDyke Software, Inc.
All rights reserved.

What can I do if I get disconnected with a "CRC Check Failed" error when I use SSH1 to connect to a Cisco router running IOS version 12.2(10a), 12.2(10b), or 12.2(11)?

SecureCRT 4.0.5 has a workaround for this problem. In order to use the workaround, complete the following steps:

1. From the SecureCRT Options menu, select Global Options.
2. In the Category window, select the "Advanced" category under "Options". Increment the "Character send delay" value by one.
3. Exit SecureCRT.
4. Add the following line to the INI file of the session that is having the problem (the session INI file is found under "Config\Sessions" in the SecureCRT folder):
   

   D:"Keyboard Char Send Delay"=00000001

   Be sure to add a return after this line if you add it to the end of the file. This number is the character send delay in milliseconds. Note that this number is hexadecimal.
5. Run SecureCRT and see if you can still reproduce the problem.

If you still see the problem:

1. Increment the "Character send delay" value from step 1 above by one.
2. Exit SecureCRT and increment the number of the "Keyboard Char Send Delay" by one.

Note: You may have to repeat the above steps several times. If you have incremented the value five times and it still has not solved the problem, you may want to jump up to 300 (0x12c) and, if that works, work your way back down. If you use a large number, there will be a visible delay on pastes and keystrokes. This is also a way to test that the delay is actually being used.