I need to use a watch dog for the mega because i am loosing connection with ethernet shield in random times...
but it seems that the wacth dog dont work with the MEGA2560 , to fix this the only way is change the bootloader to this
https://raw.github.com/arduino/Arduino-stk500v2-bootloader/master/goodHexFiles/stk500boot_v2_mega2560.hex ?
or is there any other workaround?
nobody????
You seem to have identified the problem and the solution. I'm not aware of any alternative solutions, but I don't see any reason not to use the solution you already know of.
Intermittent Ethernet connectivity problems don't strike me as a good reason to reset the Arduino, by the way.
Just a feedback.
i am using this method , and 99,9% of the problems solved with watchdog,,