So all of a sudden at the start of this week I have been receiving terrible packet loss when trying to game on my new PS5. Everything was fine but now every time I try to go online I am getting packet loss of up to 20%. I use an ethernet cable directly into the router and have tried multiple so I know it is not this. I have also hotspotted from my phone and get negligible loss (1/2%) when I game so I also know it is not the PS5. When I am gaming and check packet loss tests on other devices, it is also pretty bad around 5/10% BUT when i turn off my PS5 packet loss almost goes to 0% across the board. I have NO IDEA what is going on and have tried everything I could think to fix this. Nothing significantly has changed since the issue apart from a new work set up at home - however I also switched this off at one point to check if that was causing the issue and still awful loss. ANY HELP would be greatly appreciated.
Use a wired PC to router and use PingPlotter to see what’s going on. You can then post the results here which may help others to solve your issue.
I'm also having the same issue from start of last week..no idea why it is happening.