I have a TRB140 configured to allow access to a private LAN via VPN which has been working fine for about 2 years. Remote access via SSH or to the Web Gui is disabled - you have to access it via a host on the local LAN.
Recently, however it suddenly seems to have started allowing remote access resulting in a a vast amount of traffic of bots trying to log in. This has filled up the logs and damaged the performance - as well of course being a security hazard. The poor performance looks as if it has also led to not now receiving SMS messages.
Firmware is version TRB1_R_00.02.03.2
Any suggestions as how to solve the problem? Maybe a factory reset and reconfigure from scratch?