Recently all devices, 2 ethernet wired PC's, 2 mobile phones, all report slow speeds, under 100, peaking at 85mbps and as low as 25mbps
I have checked all cabling, the newly installed router hasn't even been touched or moved since installation ( until i have checked it recently )
I have used different ethernet cables and ports.
I have turned the ethernet devices wireless to see if it made a difference,
I have turned off the router and left it for a minute.
I have reset the router, holding in the reset button for at least 10 seconds.
I have tried to use the app's diagnostic feature, it just froze on me 3 seperate times.
I have used the websites diagnostic tool, it noted a problem last night, but says now there is not one, but the issue persists.
I have used the routers own network diagnositc tool, states nothing is wrong.
Nothing has affected the speed at all; I am hesitant to waste hours on the phone to tech support lines which will likely ask me to do the steps I have already done above.
Note; Upload speeds have remained consistent at about 35mbps; so seemingly unaffected.
Here are three speed test results and logs from the router.
Edit: link to broadband graph monitor, just set it up 13:30
https://www.thinkbroadband.com/broadband/monitoring/quality/share/6d80f614e4cb8e15490ae16f92625ff7fb...






