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Capturing Traffic: PlayStation issue on one ISP

mrric

Occasional Visitor
After recently switching to Frontier fiber, I recently discovered that I cannot do online multiplayer with one of the games. It fails without an error code going into multiplayer. I thought it might be my new RT-AX86U Pro but when I tried my old RT-AC68U, it failed on that also. Using my phone as a hotspot with just my cellular connection, it works. It also works if I use Proton VPN Free configured in the router. Both these options are unusable because of the latency and disconnects. Frontier support is blaming my, "third party devices." They assure me that they don't have any firewall enabled on my account... but I know something with their internet is causing this issue. I had no issue when I was on Xfinity cable. I am wired directly from the Frontier ONT to the ASUS. The PlayStation is hardwired to the ASUS.

Is there a way to log all the traffic from just the PlayStation to troubleshoot? I want to compare the logs with their connection vs one of the other connections where it actually works. Perhaps if I can tell them exactly what I see being blocked, they can escalate internally.
 
You'd have to install tcpdump through Entware and then run something like this (assuming the PlayStation is connected to your main LAN):

Code:
tcpdump -i br0 host 192.168.50.99
Change 192.168.50.99 to be the IP of your PlayStation.
 

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