licence issues

we have a monthly licence not ppi… i assume its the same process however for offlne licencing ? would we have to do this when we renew the licence ?

anyways the problem keeps happening and now it is happening  on two workstations that ran perfectly for months before - the jobs are suddenly being paused with constant errors saying cant connect to your licence servers

we click try again and they work for a while then it pops up again 

we have no issues or problems with internet or with the workstations themselves and our licences dont expire for another week at the least ?

help please !!! we are unable to work…