As a follow-up to this thread.
I managed to RMA the UPS they got the new one sent out it arrived a few days ago, been working like a gem, no errors nothing at all, I set the port to auto in the end because I was lazy and I didn't need to use the MAXAGE parameter in the end either. So it was just a fault USB COM controller causing this issue.
Anyway thank you to everyone who helped diagnose the issue, I appreciate the help allot.
Thanks
Spencer Skinner
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