Help!! slc5/04 communication issue, OEM fiasco

Even if DH+ will work, there seems to be a noise/grounding issue which ought to be indentified and taken care of.

I agree with the 'issue' but I still think it could be other than noise.... I would like to see what they are using to connect if its a cheap USB adapter than that maybe the issue and RSLinx is disconnecting, as the saying goes "trust but verify", if someone told me it was changing protocol I would need to verify everything they told me
 

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