Damaged firmware?
I have 4 of these switches spread out at remote locations, and while running some maintenance I discovered that one of them has a different web GUI, and missing several features that are web-configurable. All 4 were purchased at the same time and are on the same hardware and firmware revisions. You can see a side-by-side comparison below, with the bad switch on the left and one of the others on the right.
I have flashed and re-flashed the firmware, and even tried switching the boot images to no avail. I attempted to save the firmware from one of the good switches, but it wouldn't transfer the BIN to a TFTP server.
I really don't want to RMA the one switch, so if anyone has any suggestions I'm all ears. Thanks!