When I play Pokken DX on my home university network, it takes a long time (>10 minutes) to be matched with another player, and I frequently experience error code 2618-0513 ("NAT Traversal Process has Failed").
However, if I try playing on a non-university network, such as my phone's personal hotspot or hotel wi-fi, I get matched up with players in seconds, and I never experience that error code. Additionally, I have no issues with the store or other online functionalities.
I have run the connection test, and it says that my NAT type is B, with up/down speeds greater than 3 mb/s. Switching between wired and wireless connections doesn't make a difference.
How do I improve my network connectivity on my university network?