There are some persistent issues that cause the game to lose connection, resulting in a crash or forcing a restart. This has become even more frequent after the latest update and is making the game a lot less enjoyable.

1. Exploration - Normal speed exploration will cause this after 5-10 times. Fast exploration used to not have this problem but now I'm starting to get that too.
2. Normal speed battles - Usually after 3-5 battles. Never had this issue with fast battles.
3. Sailing route creation - If I'm creating a long route, by the time I get to about the 6 ports, the game becomes very laggy. When I get to 8 ports, there's a high chance that the game will crash.
4. Dispatch - If I look through too many dispatch options, the game will crash.
5. Looking through mates - Sometimes if I go through too many mates (e.g. to update gear), the game will crash.