I'm having a very frustrating issue with a 2821 router. Its configured with zone-based firewall, URL filtering, ssl vpn...etc..Very long configuration. Problem is, it no longer will allow me to save the configuration. I tried write erase, erase nvram:, erase nvram:startup-config and it won't get rid of the old startup configuration. I tried service compress-config manually deleting all references to a startup-config, but it will never disappear, and it will no longer update. Configuration register is set to 0x2102.
I tried boot config to a config file in flash but this won't stay in the config due to the issue above.
Any help much appreciated.