Having had some connection and lag issues this past weekend, I thought it best to remind everyone of some things you can do to help reduce network issues on race night. Obviously we'll never be able to completely eliminate them, there are just too many variables. But, if you can make sure come race night, you've done at a minimum steps 2 and 3, the lounge you're racing in will have a better chance at a smooth night.
What you can do to help minimize connection and lag issues
1) Reboot your isp's modem/router prior to joining your SNAIL_DivisionX lounge.
2) Reboot your PS3 prior to joining your SNAIL_DivisionX lounge.
3) Clear your GT5 in game System Cache prior to joining your SNAIL_DivisionX lounge.
4) Minimize the number of devices using your Internet connection while racing.
5) Turn off PS3 System Notifications while racing.
6) Don't join your SNAIL_DivisionX lounge before the
Primary Host does. If the Primary Host is not the first in the room, everyone exits and lets the Primary Host enter first.
Step 1 is not usually necessary. I've found when my modem is on for long periods and not rebooted, I get connection issues in almost every game I play online. If you've experienced connection issues in the past, it's not going to hurt.
If anyone else has any hot tips on how to minimize connection and lag issues, let me know and I'll add them to this post.
Thanks!