M5 reduces internet up and download speed in LAN
I have a new Fritzbox AVM 7530 connected to internet as modem. I use DECO as router for my home mesh. Master is connected to modem via RJ45 and from Deco Master a second cable goes to my home network switch. All hardware like NAS, Printer, Smarthome hub etc is connected via cable. As well as all computers when in the office.
Before I had a LTE connection via Huawai modem 50 Mps which worked fine.
Now I have a fibre 100 Mps connected to the Fritzbox. Messured speed on LAN is 86 to 98 Mps. Both on OKLA and on Deco App.
Speed through Deco is 4,5 Mps down and up 12.1 when mesured in Ethernet after Deco, before and after LAN switch. Same speed in WIFI mode.
Is there any explanation and remedy which I can apply.
I need one home network with one IP range to access all the periferals which are cable connected.
Does anybody have a similar problem?