GRS - GTWSVR issue urgent

Dear All,

The communication from GRS PLC Siemens to DCS GE network (EXTSW, UTM FIREWALL ,SW-XDH, RTR& GTWSVR mark vle) through optical converters installed by customer on both sides (GRS & GE network server) was checked through modbus simulator installed on laptop and a live values was received before DCS , still the GTWSVR mark vle modbus values not received any data, but i able pinging and tracert on GRS its ok.

best regards