Official tool from Realtek to diagnose ethernet problems on many of their network cards including RTL8111B/RTL8168B/RTL8111/RTL8168/RTL8111C/RTL8111CP/RTL8111D(L)RTL8168C/RTL8111DP/RTL8111E RTL8168E/RTL8111F/RTL8411 and more.

Official tool from Realtek to diagnose ethernet problems on many of their network cards.

Will work on:
RTL8111B/RTL8168B/RTL8111/RTL8168
RTL8111C/RTL8111CP/RTL8111D(L)
RTL8168C/RTL8111DP/RTL8111E
RTL8168E/RTL8111F/RTL8411
RTL8100E/RTL8101E/RTL8102E-GR/RTL8103E(L)
RTL8102E(L)/RTL8101E/RTL8103T
RTL8401/RTL8401P/RTL8105E
RTL8402

and possibly others.

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