TREX ABAP connection

Hi Guys,

Our TREX RFC connection to backend ABAP system keep going down every few days....

A quick restart of TREX solves the problems....I get errors in trex traces directory like:

T:1489906240 ======> Connect to SAP gateway failed

I suspect this might be due to some timeout at SAP gateway side or something like that....the TREX is not used heavily so I suspect that inactivity for long periods is causing this...

How can I solve this...will some parameters like gw/reg_timeout be relevant here?

Thanks

Cyrus