Gargoyle Forum

It looks like since 1.10 LAN to Cable Modem has a performance problem.
Instead of 400/500 Mbit/s it shows 120 only.
If i upgrade i succeed to reach 190/200, but with direct cable connection i reach 400/500.

Computer has a Gigabit LAN Port, according to the Cable Guys the Modem has a 100 LAN Port.

So what can i do?
Only a normal LAN CAT5 Cable is connected WAN to Cable Modem at the modem. When the internet reached only 200 Mbit/s it worked all fine.
I read going back to old versions for Archer C7 v2 is not recommended below 1.10.
Is it something i can fix too somehow?

No, your router is at the limits of its CPU.
This has been discussed numerous times, so if you search you can get a more detailed answer.

Hmm but one thing is strange it was working up to 200/250 before with no problem.
And also Devolo DLAN 1200+ reaches up to 340 Mbit/s.
So i really don`t understand as it has GB LAN Ports.

The kernel changes and so does the cpu overheads and network stack.
The port speed doesn’t matter, it is about the CPU being able to perform the NAT role at a specific speed.
OEM firmwares use hardware acceleration to solve this.