Increase cncli ptsendslots wait time after epoch boundary (#817)

scripts/cnode-helper-scripts/cncli.sh

@@ -597,7 +597,10 @@ cncliPTsendslots() {
     getNodeMetrics
     [[ ${slotnum} -eq 0 ]] && continue # failed to grab node metrics
     [[ ${sendslots_epoch} -eq ${epochnum} ]] && continue # this epoch is already sent
-    [[ ${slot_in_epoch} -lt 300 || ${slot_in_epoch} -gt 3600 ]] && continue # only allow slots to be sent in the first hour after epoch boundary, wait 5min after epoch boundary
+    if [[ ${slot_in_epoch} -lt 900 || ${slot_in_epoch} -gt 3600 ]]; then # only allow slots to be sent in the first hour after epoch boundary, wait 15min after epoch boundary
+      [[ -t 1 ]] && echo "${FG_YELLOW}WARN${NC}: Valid window to send slots is ${FG_LBLUE}15 - 60${NC} min after epoch boundary" && break
+      continue 
+    fi
     leaderlog_cnt=$(sqlite3 "${CNCLI_DB}" "SELECT COUNT(*) FROM slots WHERE epoch=${epochnum} and pool_id='${POOL_ID}';")
     [[ ${leaderlog_cnt} -eq 0 ]] && echo "ERROR: no leaderlogs for epoch ${epochnum} and pool id '${POOL_ID}' found in cncli DB" && continue
     cncli_ptsendslots=$(${CNCLI} sendslots --config "${pt_config}" --db "${CNCLI_DB}" --byron-genesis "${BYRON_GENESIS_JSON}" --shelley-genesis "${GENESIS_JSON}")