SQL Server Transactional Replication Stopped

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SQL-Server-2012

Hi There,


I have main server (DELL Power Edge T320) with SQL 2012 installed. Configured transactional replication, created three distributions with multiple articles (around 3-4 articles in each dist.). Subscribed 3 remote servers connected via VPN. All works fine but suddenly replication stops working. Checked everything, recreated distributions twice, ensured connection several time but failed to detect the problem. One thing that I have noted and seems abnormal that server time automatically changes from AM to PM due to unknown reason. Just wanted to ask, is there any impact of changing the time with replication or there might be something else that I am missing?

Quick response will be highly appreciated.