You are unable to access a Catalyst switch with the web-based device manager or web interface utility if the image in the switch is a .bin version of Cisco IOS . The .bin file is used only if you want to use the CLI to manage the switch.
If this is not the case, then the issue can be due to the Management VLAN.
If you want to manage switches or clusters of switches through a web interface such as HTML, you need to download the .tar file, which is an archive file. The upgrade process automatically extracts both the Cisco IOS image and the Cluster Management Suite (CMS) files from the .tar file.
Note: If free space available in flash: is less than the image size, then you possibly have to delete one of the existing Cisco IOS files or backup the files to a TFTP server in order to save the new .tar file inflash:. This is because .tar files are larger than the regular .bin images.
Make sure the Management VLAN ID is assigned an IP Address and it exists with the show vlan command. Use the show interfacescommand in order to display the administrative and operational status of all interfaces or a specified interface, which should be UP/UP.
You can create a VLAN with the vlan VLAN configuration command and issue the no shutdown command.
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