Network issues with Sonore Optical Module

[Mustu]

Hi 

 

so I have been using the Sonore optical module for about 10 months no issues… so I landed up with an issue 

 

its LAN -> OPTICAL MODULE -> FIBRE TO THE UPTONE EtherREGEN SWITCH

 

1) the ps audio dectect went into protection mode the sonore optical module is connected to it.. after resetting the ps audio it came back on but no network. 

 

I connected the LAN cable directly to the EtherREGEN and everything worked… but they I tried different SPF MODULES and reconnected the Sonore’s OPTICAL MODULE and it will work  but say for 30 to 45 minutes and then it goes off line again.

 

Any ideas ?