Solution:
Follow these steps when upgrading the firmware on the P-series routers.
1-Down-load both the boot code and firm-ware from the Perle web site. See link below.
2-log into the router
3-select CONFIGURATION
4-select ACCESS
5-enable tftp
Before performing any firm-ware updates. It is advisable that the current configuration be saved. To do this issue the command " get config.txt " from a pc running a tftp client application.
6-select LOAD FLASH
7-when prompted select lan
8-when queried for a remote site id choose
NONE
9-when the router goes into download mode goto a pc that is running a tftp client then select the send option in binary mode define the file then start the transaction.
10-Repeat the above sequence for both the boot code and firmware.
If after power cycling the router you observe
"S B00000000023be50" then the unit is stuck in down-load mode.
If the unit gets stuck in Down-Load Mode :
- press CTRL+X 5 times.
- login to the unit
- select CONFIGURATION
- select LOAD FLASH
- select abort load
- choose yes to return to operational mode
The router will reboot.