why my all p2p channel say missing channel when i put the 9th p2p tunnel in my me network?it is dense cable

it is dense cable ... sure, but is the dense cable connected to an controller? don't forget, ME blocks are acting as 8 channel cables only!

well from a second reading ... when "all" say "missing channel" it is obvioius you are missing a controller!

ok,that mean if there is no me controller, the dense cable only allow 8 channel?thx

An ad-hoc network without a me controller can always only handle 8 channels, no matter which cable you use.

ok