Cisco 1711 Warning: Cookie information is corrupt and Bad checksum on cooki

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Jun 22nd, 2009
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I have Cisco 1711 router. The router went to romon mode.when i am trying to upgrade the IOS via TFTPDNLD and XMODEM, i am getting below error.

Warning: Cookie information is corrupt

Bad checksum on cookie structure, resorting to backup copy

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Giuseppe Larosa Wed, 06/24/2009 - 00:08
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Hello Sigeesh,

have you been able to install an IOS image on the device?

Hope to help


Vignesh Mani Wed, 06/24/2009 - 00:43
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Hello Giuseppe

I have tried using TDTPDNLD and XMODEM, but getting the same error at the time of upgrading.


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