. to bn: No valid RRSIGs made by a key corresponding to a DS RR were found covering the DNSKEY RRset, resulting in no secure entry point (SEP) into the zone. (194.0.1.33, 202.12.31.53, 204.61.216.87, 2001:500:14:6087:ad::1, 2001:dd8:12::53, TCP_-_EDNS0_4096_D_KN, UDP_-_EDNS0_4096_D_KN)
. to bn: The DS RRset for the zone included algorithm 8 (RSASHA256), but no DS RR matched a DNSKEY with algorithm 8 that signs the zone's DNSKEY RRset. (194.0.1.33, 202.12.31.53, 204.61.216.87, 2001:500:14:6087:ad::1, 2001:dd8:12::53, TCP_-_EDNS0_4096_D_KN, UDP_-_EDNS0_4096_D_KN)
bn zone: The server(s) were not responsive to queries over UDP. (202.93.214.163)
bn/NS: No response was received from the server over UDP (tried 12 times). (202.93.214.163, UDP_-_NOEDNS_)