To add a hublist you need to specify the port that is used. You didn't, as far as I can see, so try to ass hublists again (just find out which port each of hublists is using, most is using 2501 I think). For dchublist.com you register manually on hublist's webside. Command says:
!addhublist <protocol> <address>:<port> Add a hublist (protocol = ADC or NMDC)
so as an example it will be:
!addhublist NMDC bracnet.sytes.net:2501
Hublists that are working in my hub are:
NMDC hublists:
ONLINE bracnet.sytes.net:2501 Hub registered succesfully.
ONLINE dc.gwhublist.com:2501 Hub registered succesfully.
ONLINE dclist.sytes.net:2501 Hub registered succesfully.
ONLINE infohubreg.no-ip.org:2501 Hub registered succesfully.
ONLINE koris.sytes.net:2501 Hub registered succesfully.
ADC hublists:
ONLINE dc.gwhublist.com:2501 Hub registered succesfully at: Gwhublist / website: http://www.gwhublist.com