mil/SOA: No response was received until the UDP payload size was decreased, indicating that the server might be attempting to send a payload that exceeds the path maximum transmission unit (PMTU) size. See RFC 6891, Sec. 6.2.6. (199.252.157.234, UDP_-_EDNS0_4096_D_KN_0x20)
lum7q.e8b5t.mil/A has warnings; select the "Denial of existence" DNSSEC option to see them.