Losing 200k per disconnection

Currently with Uno/Xilo on TTB LLU line and pretty happy with it. But I have noticed the odd disconnection over a couple of weeks which I think is quite acceptable.

Weird thing is I have tweaked my SNR to 1.5db and uptime is like I say a couple to three weeks at a time, but each time it disconnects I lose about 200kbps sync.

Currently sitting at 17467 kbps on my bridged Billion 7800. I am thinking that the warming up of the wires is making me lose 200k at a time as this week has been particularly warm and humid and I tend to get better sync speeds in the winter. Any ideas?