It may be an overlap of IP addresses. The internal network for the antlets (10.1.1.x by default) must be a unique network - different than the LAN your antsle is connected to. 

If these networks are the same, run the baseip script, from the antsle's command line, to change the antlet's network with:

    antsleOS-baseip set x.x.x.

replacing x.x.x. with a unique network address. Note, include the last '.'

There are several ways to get to the antsle's command line (terminal).