Hi, Please find attached a debug of 62 lines. My ippool seems full: [sqlippool] pool appears to be full [sqlippool] expand: IP Allocation FAILED from %{control:Pool-Name} (did %{Called-Station-Id} cli %{Calling-Station-Id} port %{NAS-Port} user %{User-Name}) -> IP Allocation FAILED from proximus-carli (did proximus.trimbletl.com cli 32770XXXX port 29449 user 45486XXXXX) How could I check if the ippool had run out of IPs or was close to? I tried with these but clearly this was not good enough . Is there a better method of currently allocated addresses? mysql> select count(*) from radippool where username = ''; +----------+ | count(*) | +----------+ | 383727 | +----------+ and with, mysql> select count(*) from radippool where expiry_time is NULL ; +----------+ | count(*) | +----------+ | 396466 | +----------+ I am surprised this filled up, because we don't have enough devices to fill up our IP space. What could happen if NAS did not send back accounting stop packets? Can I add more IP addresses into radippol with FreeRADIUS running, or should I shut down FreeRADIUS during this insert? Kind regards, Sophie