And did you contact the Support? A forum post will likely not be seen soon enough for them to investigate...
Open a Ticket with following Info:
- Region you are playing
- Platform you use
- Time and Date when disconnects happened
I play Europe - PC and had 0 issues yesterday evening - played 6-7 Matches without a single DC.
Edit: googled your error code: https://support.ubi.com/en-GB/Faqs/000034021
Probably a Problem on your side...