fails to access embedded board using telnet
I am using a custom board with at91sam9260 micro controller.
I could boot the board successfully with Linux Kernel 2.6.20(customized for our board). And able to 'ping' other devices from that.
When I try to access the same board using telnet from other devices(I use telnet in linux/ putty in windows based machines) , its succeeding for 2-3 hours.But fails after that.
We are able to access the board through hyper-terminal/minicom, which is connected to the board debug port. Problem is only with telnet connection.
Is it a kernel bug ? Please help me out to solve this issue.