HP 5412zl - module to module traffic not working

Hi everyone,

Has anyone ever ran into issues with traffic not passing between modules in a multi-module ProCurve chassis?

I have an 5412zl where VLAN traffic within a single module works fine, but between 2 modules the traffic doesn't pass at all.

Config:

vlan 201 untagged D19-D24,H18 tagged H20-H24 ip address 10.90.x.x 255.255.255.0 exit 

In this example, traffic between H18 and H20 works fine.
But traffic between D21 and H20 doesn't work at all

This is how show module looks like:

Slot Module ---- --------- A HP J8702A B HP J8702A C HP J8702A D HP J8702A E HP J8702A F HP J8702A G HP J8702A H HP J8705A 

Any insight into this would be much appreciated.