First of all, thanks Fraser; thanks to your advice in other threads, I managed to get the R1 working.
The R1 is indeed likely too old and outdated; in any case, it doesn't allow me to search for COD lobbies in Europe, so I set a filter for the US and it works. However, I can't play with my friends who are in France.
The strange thing is, when I set a polygon over France or Europe, I can't join a lobby. But when I create a polygon over the US, I join matches and even see peers in France—peers I didn't see with the other filter settings.
I'm going to try adding the peers I see when I'm in a party with my friends; maybe if I add all the peers, I'll eventually be able to start a match.
Here is my analysis of the desynchronization issue people are facing, even when using a Netduma router. I believe it stems from a tick rate assignment or communication issue linked to the client's connection (especially fiber)! In France, there are four high-performance ISPs; I’ve tested three of them and encountered the same problem every time: my first match goes reasonably well, but then things deteriorate until the game becomes almost unplayable—what is commonly referred to as "desync":
- Controller input lag
- Reduced damage output and increased damage taken from enemies
- Dying in a single frame
- Character moving sluggishly for no apparent reason
...and various other consequences.
Essentially, I suspect my tick rate gradually drops until it’s almost non-existent, whereas my opponent's tick rate remains adequate for the game. I haven't been able to pinpoint the exact cause regarding my connection; all three ISPs confirmed my connection was solid and error-free. The server assigns a tick rate to the client based on several criteria, and for some reason I can't fathom, my connection fails to meet one or more of them. Without in-depth diagnostics, it’s virtually impossible to identify the root cause. I’ve tried various configurations on both my ISP router and the Netduma, but nothing offers a lasting fix; sometimes I’ll have a good match, only for desync issues to return. I can't tell if playing on French servers or against European players is what exacerbates the problem, so the strategy now is to avoid both.
With a US filter, I average 35ms ping compared to 7–22ms in France/Europe, and gameplay feels almost normal again. Unfortunately, there are still French and European players on US servers, so I still experience desync against them—though sometimes it’s less severe or non-existent.
From what I’ve read, the Netduma doesn't solve this specific issue, though that isn't its intended function anyway.
To summarize:
Without the Netduma, COD Warzone works at about 20% capacity for me—and sometimes much worse against certain European players.
With the Netduma R1 set to the Europe filter, I get "unable to join host" errors.
With the Netduma R1 set to the US filter, Warzone runs at 70%—or even 90% if there are no European players present. The remaining 10% of issues stem from facing opponents with lower ping than mine; it makes things harder, and I don't benefit from favorable lag compensation.
I’ve digressed a bit, but I thought this might help others in the same situation.
Good gaming!
