Hello,
Please try to telnet(with “telnet IP address of router” )into the routers and after successful login, enter the top command, which lists the running processes of the system. Check if the chilli process starts to use too much memory. Unfortunately there's a bug in DD-WRT, which causes chilli to eat up all the memory of the router and then stop working. This can be seen by the chilli process' allocated memory continously increasing. If that's the case, routers should be restarted before this happens and they need a restart script doing this. Latest developments let us think that DD-WRT is working on a solution, which would replace chilli with the much newer coova-chilli process and would eliminate all issues related to chillispot.
Best Regards,
Steve Hars,
Helpdesk at Hotspotsystem.com