MSTP on 2 ProCruve E2510G-24

[Jos-Admin]

Hi,

I have 8 servers connected to 2 E2510G-24 switches.
The Servers are HP DL360G7.
All servers are configured with Teaming in NFT (Network Fault Tolerant Only) mode.
Each switch has 2 VLAN's.
1 Cross over cable connect between SW-A and SW-B.

Vlan taggining is enabled only on the port with the cross connect.

The cross connect port  is a member of both VLAN's.

Jumbo frame is enabled

The network works grate but our Java application something get the following exception:
Connection reset by peer: socket write error
I think it is related to the spanning-tree configuration since we do not see this behaviour on a non redundant switch networks.
Does anyone have a clue at what to look for?