"The replication operation was preempted" and DNS unavailable

Hello,

i have promote new domain controller, now it almost 6 hour after it first reboot for complete promotion. I noticed got three issue:

1. Error opening DNS  on new promotion server" Server could not be contacted. Error: DNS service is unavailable".

2. When im run repadmin /showrepl it show (got few delay result) + few success result:

==== INBOUND NEIGHBORS ======================================

DC=mydomain,DC=com
    siteB\MN01SRV001 via RPC
        DSA object GUID: ddd6d4f4-c37a-47cd-8a03-29573d5cc203
        Last attempt @ 2020-01-08 23:43:04 was delayed for a normal reason, result 8418 (0x20e2):

3. When im repadmin /replsummary "The replication operation was preempted"

Based on above error, im wonder whether it because of replication not yet been completed or im getting "real" issue on this? for additional info, when im run repadmin /queue i can see few replication on queue. This server also got few replication partner. So should i just leave it and keep monitor or need to demote and promote again. 

Thanks