Packet loss and ping/lag spikes

[Renato]

Sharing the info to the questions asked and also made a new topic as requested

ONU /GPON provided by ISP is a KingType GPNC14 on bridge mode with a public ip assigned to the R3 Mac address bellow the router

R3 Is configured with static IP no dmz no upnp

Only 2 devices are connected to the R3 my gaming pc and my work pc never use both at the same time

260 megas

Yes I use 250 on the speedtest 

Congestion control set to 70% on both up and down 

Smart boost is set 

activities: 1 gaming 2 call of duty (series) 3 video and streaming and 4 work from home

Devices: 1 gaming pc 2 work pc 

Call of duty Black ops 7 and warzone

PC game pass ethernet cat5e

Yes geo filter is set up: geo latency off

PC set as console on device manager 

Port forwarded tcp and udp for COD

Duma OS version: 4.0.1147

App version: v4. 0.283

Also let me know if you need screenshots from pingplotter to help identify the problem or any other picture 

Sorry for the late reply btw 

The fix of putting the pc Mac address on the router Mac address cloning helped to partially solve the issue but now I'm back to constant packet loss on every single match 

Also no servers are shown for Florida only Atlanta and Washington (haven't tried those) 

Tried playing connected to my ISP onu and didn't got packet loss only very high ping spikes from 25 to 80 in the same second and going crazy