Hi, I'm using an Apple Airport Extreme Base Station 3rd Gen - A1301. I recently upgraded my ISP (connection via PPPoE) and now get stable speeds of 150mbps. For the longest time I was not able to go above 100mbps with my AE and kept complaining to the ISP that there was a fault at their end. Their tech guy changed multiple network plugs on various ends, to no avail. Then, I plugged in the ISP's main network cable into my Mac and voila, I got the optimum speed. Finally, their technician got their own router (TP-Link Archer C1200) and to my surprise, I was able to get the full speeds on that too. Thus the issue had to be with the AE. The setup is as follows - Main ISP Cat5e -> AE -> Mac via Cat6 I reset my modem to factory settings and then set it up again, now I am able to get speeds up to 125mbps but still not the optimal 150mbps that I am able to achieve over the ISP provided router. ALSO, the speeds over WiFi (5G) don't go beyond 60-70mbps whereas the other router gives me a full 150mbps. I've been researching a lot for the probable causes and have hit a dead end. Any suggestions or help would be much appreciated. Thank you, LostInSpace PS: One thing I forgot to mention that both the cables are straight cables. I know that it shouldn't make a difference, but you never know.