Your bot's uptime is based off the original uptime value you send -- for some reason people cheat and change this original value to make their bot look like it has a higher uptime than it really does. So to help prevent cheating if the first packet your bot sends has an uptime greater than 4 days it will be marked as untrustworthy. There is also a bug in the uptime module for Eggdrop v1.6.10 and below, where if you type ".restart" the module will be unloaded and reloaded -- and the uptime value changes because of this. This bug has been corrected in Eggdrop v1.6.11 and your bot should no longer be marked as untrustworthy if you ".restart".