If that is the case, and I'm not saying it is or isn't, it's one more reason for everyone to give themselves some time to find the room on race night. If you have ever had and issue with friends only rooms not showing up, you should prepare for that to happen. Logging in 3 minutes before race time and trying to find the room is asking for problems. I was amazed last night at the number of people that posted either within five minutes of race time or well after race time that they couldn't find the room for their division.
Get your poop in a pile and give yourself 10 or 15 minutes to make sure you are going to be able to find the room. Like the old saying goes, failure to plan is planning to fail.
I had gotten in the habit of restarting system, router, etc about 15 mins before race start, as that seemed to work for about two months with zero issues (with regards to seeing the room and all others on track).
By the time everything comes back... T-minus 10 minutes. No friends rooms show at all. Not the end of the world. Plenty of time to try again.
By the time everything come back, t-minus 5 minutes. Still no room. Freak out!?!? Then hear advice to search by track. Suddenly I see three divisions.
Same thing happened last week and I missed race 1 on my 2nd restart. I wish I could go back in time and see if the track search would have worked.
Regardless, based on my experience, I think the right answer is to simply note in our procedures to "search by track prior to clearing cache, restarting, etc." That takes less time and may be a more reliable solution, at least with this current GT6 update/version.
The other issue is that when restarting router you can't post online. I'm generally trying to get everything booted back up ASAP and not taking the time to post issues in the thread until the last 5 mins when panic sets in. (This is in addition to making it clear in the Div convo that I'm coming to race). Seems others operate in the same mode.
So the lesson to be learned: do what works for you, but before the first router reset, tell your division you are coming. Then if you still have issues 5 mins before, let them know. That'll buy you the few extra mins you may need for one last restart. And if that fails, see you next week! ;-P