We have a Cisco 9500-40X switch at a new location (single switch). This is the first time we have ever used this particular model. We seem to be having trouble saving the configuration. Every time we power the switch on, the config is gone. I am used to other Cisco switches where I can use 'wr' to save the configuration locally. Does this command not work on this model?
do u see any messages after you do "wr" ? have you tried "write" or "copy run start" instead of "wr" ?
look at flash; you should see config.text file in there and compare time stamp to current time/date.
there might be a setting for switch to ignore start-up configs. so, maybe "wr" works but command was issue to ignore it. Normal boot Settings is Configuration register is 0x102 line in show version. Also, look at show boot or show system boot options
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Is this means, you able to issue the command #write but you not able to write the change in to startup config.
Look like confreg issue, can you post show version , to see any other bugs related to version.