As you’ve requested, I’ve disconnected the SPF+ connection from the NAS to the router and reconnected it using a standard copper Ethernet cable. As was the case the last time we did this, the problem and symptoms remain. Here are three specific time stamps where the problem was observed from the user’s point of view:
05/06 18:26
05/06 19:21 – 19:22
05/07 06:30 – 06:35
As you can see, the logs are full of problematic entries, not just at the above time stamps.