The factory reset seems to helped. I suppose I assumed the firmware update would've done the same thing, apologies. I can now get matches very quickly with filtering off, and with the expected amount of delay with various levels of filtering on. The "FAILED TO JOIN'S PARTY/Unable to connect to host" error message seems to be when the server/player is rejected by the R1. Previously it just seemed to be rejecting everything. I don't see the error now with filtering off, and briefly with filtering on before I do join a match. Thank you very much for your help.