hi aal i m new to this forum 4m India i got 01 nos HICOM300 connected to 04 nos HICOM150 through DIUN4 and working very fine till last 15th but suddenly stopped inter communication H300 to H150s) from my review i found its problem with HICOM300 as theres no Tx from central side where as green LED of HICOM300 is normal when i tried to login to the system through comwin connet its no allowing me to enter into any AMO when i tried through CODEW it gives a Err related to my dongle i have tried connecting/disconnecting th dongle several times is it a issu of licencing as SIE people are asking money for renewing th lic please help to resolve the problem or else i will loose my job and my family my put in to trouble in this crucial financial period SSSSSSSOOOOOOOSSSS thanks to all n this forum in advance