TL-WR841N TP-Link Router: Speed Optimization for 120Mbps UPC Internet, Lan & Wi-Fi Configuration

Hello to all forum users!

I use UPC services, 120 mbps internet.

After the cable directly from the UPC router, the speed is about 100mb / s +, i.e. it is approx.
The problem appeared when I installed the TP-link router (TL-WR841N) between the UPC router and the PC computer, which has "N" technology (300mbps)
- Speed over the cable from the router Tp link is now max 32mb / s, and after wi-fi 21mb / s

It looks like the TP Link router is limiting the speed considerably.
I note that I configured tp-link automatically according to the manufacturer's instructions.

in tplink
- disable the firewall
- set WIFI channel width 40mhz.

What is the download by cable / wifi now?

But this tplink will have to be replaced with 1043 v3.

If you connect without a router, the card in your computer shows 100mbs or 1gbs?

You need newer hardware with 1 Gb / s ports to be able to forward such traffic.

Bogiebog: After disabling the firewall and after changing the band to 40 unchanged - still via TP-Link 32mb / s via cable and 16mb / s via wi-fi

Mbo: After connecting directly to the UPC Router, the card changes its parameters from 100mbps to 1gbps

Like a 300mb / s router, the loss is three times, what can you do? Exchange for a router with a gig port?

WIFI spec 300mbs (MIMO two antennas in transmitter and receiver !!!) => in lab conditions = 150mbs
WIFI spec 54mbs => under lab conditions of 22mbs

that is, max transfer in lab conditions is half the specification of wifi mbs, additional restrictions are other networks and loss of interference.

Added after 1 [minutes]:

Rasi