PSTN gateway not recognised by Lync 2013 mediation

Getting an error with SIP trunk TLS after deployment of new SBC:

Log Name:      Lync Server
Source:        LS Mediation Server
Date:          8/16/2017 12:36:43 PM
Event ID:      25075
Task Category: (1030)
Level:         Warning
Keywords:      Classic
User:          N/A
Computer:      xx
Description:
Mediation Server encountered an invalid setting that has been ignored.

Setting: PSTNGatewayService Fqdn: xx;trunk=yy
Reason: [Config] A Gateway Peer's (xx) internal settings are not configured correctly: NextHopPort = 5067, TransportType = TLS, NextHopIpAddress = N/A

Cause: Settings configured incorrectly.
Resolution:
Reconfigure the specified setting.


Double checking certificates, DNS, topology did not reveal any discrepancy, all looks correct. Do I need restart server?

The solution was to re-publish same topology second time, this time Mediation refreshed it's internal tables correctly and let SIP trunk to get up.