I have a portserver II, 50000309-02. Attempting to upgrade the firmware. I set the boothost and bootfile to the tftp server, then restart. The tftp server logs show repeated successful Gets, "Started file name: xxx" followed by "Completed, file name: xxx". This process continues for as long as I allow it, with the digi never actually proceeding to install the firmware. I tried my initial guess at the right firmware, 4001260p.bin, since that is listed as "Part# 50000309 < Rev.K or 2meg prom). I'm not sure how/if Rev K relates to 5000309-02.
At any rate, as usual, any assistance would be greatly appreciated.