i have cisco Cisco 1921 (CISCO1921/K9) and i brouht additional switch card to it but Router does not
support it because of IOS software, i found from forums that software needed is 15.2 ,our cisco is running Version 15.0(1)M4 of IOS. So i wanted to upgrade it but every software i take Cisco CP gives me an error that this software is no supported on your Device, is it okay to ignore the warning ?
Show diag :
WIC Slot 0:
Unknown WAN daughter card
WIC module not supported/disabled in this slot
PCB Serial Number :
Hardware Revision : 1.0
Part Number : 74-7105-01
Board Revision : C0
Deviation Number : 0
Product (FRU) Number : EHWIC-4ESG
Version Identifier : V01
CLEI Code : COUIA46CAA
Base MAC Address : 8843.e1b4.9908
MAC Address block size : 8
EEPROM format version 4
EEPROM contents (hex):
