Severe packet loss only in Apex Legends (Vodafone UK)

Hi,

I've been experiencing severe packet loss issues in Apex Legends for over a month and the game is currently unplayable.

Symptoms:

• 20-25% packet loss during matches.
• Red packet loss icon shown in-game.
• Rubberbanding and teleporting.
• Shots not registering.
• Code: Leaf errors.
• Occasional "Unable to connect to EA servers" errors.

My setup:

• PC on Windows 11.
• Vodafone UK broadband.
• Realtek PCIe GbE Family Controller.
• Apex installed through Steam.

Important findings:

• Apex Data Center screen shows approximately 20ms and 0% packet loss.
• Google ping tests show approximately 10ms and 0% packet loss.
• Other online games work normally.
• The issue occurs on both Ethernet and Wi-Fi on my Vodafone connection.
• If I connect the same PC to my phone hotspot, Apex works perfectly with 0% packet loss and no rubberbanding.

Things I have already tried:

• Reinstalled Apex Legends.
• Reinstalled the EA App.
• Reinstalled EA AntiCheat.
• Verified game files.
• Reset Windows networking.
• Flushed DNS.
• Reset Winsock and TCP/IP.
• Changed DNS to Google and Cloudflare.
• Tested Cloudflare WARP.
• Enabled UPnP on the router.
• Rebooted the router.
• Disabled and re-enabled IPv6.
• Tested both Ethernet and Wi-Fi.
• Disabled various Realtek adapter settings.
• Updated network settings.
• Tested multiple Apex data centers.

Since the exact same PC works perfectly on a mobile hotspot, this appears to be either a Vodafone routing issue to Apex match servers or some compatibility issue between Vodafone and Apex.

Has anyone experienced this recently or found a solution?

Thanks.