Region : Romania

Model : Archer C2

Hardware Version : 1

Firmware Version : 141117

ISP :

Hi.

I have the following problem with my TP-LINK Archer C2.

My home network has 2 PCs connected through cable to the router (the router being connected to the my ISP, which should give me a speed of 200Mbps), the PCs having the following NICs:
PC1, Intel intgrated Gbit network card;

[*][/FONT][FONT=georgia]PC2, RealTek integrated network card.

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[FONT=georgia]So far, I carried on the following tests:

[*]PC1 & PC2 on => full speed on both PCs (~200Mbps);

[*][/FONT][FONT=georgia]PC2 off => speed on PC1 only 92Mbps;

[*] [/FONT][FONT=georgia]PC1 off, PC2 on => PC2 shows full speed;

[*] [/FONT][FONT=georgia]PC2 disconnected from the router => PC1 shows full speed.

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[FONT=georgia]As well, I plugged already the connectors to all 4 back Gbit ports, but no change.
​So, my question is why on earth do I get only about half speed in the second case? Could it be a router setting or may be a driver one on my PC1 ('cause Intel driver has plenty of options).