Intermittent DNS/NTP failure alerts on E-series due to duplicate IP conflict

• NetApp E-Series
• SANtricity System Manager
• NetApp StorageGRID Appliance

• SANtricity system manager reports events:

       Unable to Contact NTP Servers / NTP Query Failed

• Trace-buffers, the NTP works occasionally but sometimes fails:
  • 03/22/26-07:58:35.058203 00 sntpEventTask cmgr  cffff sntpEvtHdlr: Checking Primary NTP Server
03/22/26-07:58:35.058205 00 sntpEventTask cmgr  cffff sntpQrySrvr: Using NTP IPv4Addr "172.30.4.1" ...
03/22/26-07:58:35.058205 00 sntpEventTask cmgr  cffff sntpEvtHdlr: stage : 320
03/22/26-07:58:46.058325 00 sntpEventTask vkiCE ffff CE_ERROR 03/22/26-07:58:46.352 sntpcTimeGet: Timedout. No response from base OS
03/22/26-07:58:46.058327 00 sntpEventTask cmgr  cffff sntpQuery:Query attempt 1 to NTP Server 172.30.4.1, Result: -1
03/22/26-07:58:46.116348 00 sntpEventTask cmgr  cffff sntpQuery:Query attempt 2 to NTP Server 172.30.4.1, Result: 0
03/22/26-07:58:46.116349 00 sntpEventTask cmgr  cffff sntpEvtHdlr: stage : 321
03/22/26-07:58:46.116349 00 sntpEventTask cmgr  cffff sntpEvtHdlr: stage : 380
03/22/26-07:58:46.116369 00 sntpEventTask cmgr  cffff ntpQueriesPassed: SNTP query passed, timeChanged: False
03/22/26-07:58:46.116371 00 sntpEventTask cmgr  cffff sntpEvtHdlr: Checking Secondary NTP Server
03/22/26-07:58:46.116373 00 sntpEventTask cmgr  cffff sntpEvtHdlr: stage : 370

• NTP Query fails:
  • 12/15/20-01:21:15.119830 00 sntpEventTask cmgr cffff sntpEvtHdlr: Checking Primary NTP Server
12/15/20-01:21:15.119832 00 sntpEventTask cmgr cffff sntpQrySrvr: Using NTP IPv4Addr "" ...
12/15/20-01:21:15.119832 00 sntpEventTask cmgr cffff sntpEvtHdlr: stage : 320
12/15/20-01:21:26.119952 00 sntpEventTask vkiCE ffff CE_ERROR 12/15/20-01:21:26.720 sntpcTimeGet: Timedout. No response from base OS
12/15/20-01:21:26.119955 00 sntpEventTask cmgr cffff sntpQuery: Query attempt 1 to NTP Server <IP Address>, Result: -1
12/15/20-01:21:37.120092 00 sntpEventTask cmgr cffff sntpQuery: Query attempt 2 to NTP Server <IP Address>, Result: -1
12/15/20-01:21:48.120222 00 sntpEventTask vkiCE ffff CE_ERROR 12/15/20-01:21:48.720 sntpcTimeGet: Timedout. No response from base OS
12/15/20-01:21:48.120225 00 sntpEventTask cmgr cffff sntpQuery: Query attempt 3 to NTP Server <IP Address>, Result: -1
12/15/20-01:21:48.120226 00 sntpEventTask cmgr cffff sntpEvtHdlr: stage : 330
12/15/20-01:21:48.120227 00 sntpEventTask cmgr cffff sntpEvtHdlr: stage : 331
12/15/20-01:21:48.123183 00 sntpEventTask mel    C0022 MelE         Major Event:0x2294 Cat:0x4  Pri:0 Log:0 Action:0x0  Origin:0x0
                                                                         ID:0x0        LUN:0x0        Dev:0x0        Data:0x00000000                                                                       Either the NTP server's resolved or configured IP address is wrong or the IP address is unavailable via the attached network