The home version of Sophos UTM is limited to 50 IPs. I frequently go over due to visitor or my test lab at my location.
-Resetting the IP count- From (Jeff@Work)
1) Login to unit via SSH (you must have the “loginuser” and “root” user passwords set via the web interface).
2) Type “cc” and hit enter
3) Type “licensing” and hit enter
4) Type “active_ips@” and hit enter
5) Type “=[]” and hit enter
6) Type “..” and hit enter
7) Type “user_limit_exceeded$” and hit enter
8) Type “=0” and hit enter
9) Tyipe “exit”, to quit, and hit enter.
This is not meant to bypass the license requirement. The license is never reset as will fill up eventually in any kind of test or lab environment.