For those who do not have TMC working, look for sys that have this:

[tmc-http]
enabled=1
start=1
profile_name="nng-igo-tmc-jci"
profile_version=2
udp.enabled=0
dt_sleep_on_error=21.0
dl_dist_0_km=210.0
dl_dist_1_km=210.0
dt_dl_0=21
dl_max_events_added=4000

[tmc.src.http]
enabled="1" always on tmc

[traffic.settings]
detour_recalc_timeout=10
treat_all_as_incident=1
new_tec_handling=1
hard_event_dropping_limit=6000
soft_event_dropping_limit=50

On the last line, 50 is the maximum number of events that will appear; you can enter a higher or lower number.