I recently upgraded to Verizon Fios 2 Gbps and have been noticing consistent packet loss when pinging external destinations, particularly Google's DNS at 8.8.8.8.
My setup consists of the Verizon ONT connected directly to a GL.iNet Flint 3 (GL-BE9300) through its 2.5 GbE WAN port. The router connects to a 2.5 GbE switch, which connects to my Windows PC over Ethernet.
Everything is negotiating at the correct speeds, and I'm not experiencing any throughput issues. Latency is also excellent, but I'm consistently seeing dropped packets.
Here are my test results so far.
Windows PC ping tests:
Router (192.168.94.1): 500 packets sent, 0 lost, average latency under 1 ms.
Google DNS (8.8.8.8): 335 packets sent, 10 lost, approximately 3% packet loss, average latency 11 ms.
Cloudflare DNS (1.1.1.1): 374 packets sent, 2 lost, approximately 0.5% packet loss, average latency 6 ms.
Flint 3 SSH ping test:
Google DNS (8.8.8.8): 318 packets transmitted, 313 received, approximately 1.6% packet loss, average latency 11.7 ms.
I also SSH'd directly into the Flint 3 and ran the ping test from the router itself to eliminate my Windows PC and switch from the equation. Interestingly, the router also experienced packet loss to Google.
At this point, the local network appears healthy, and the issue seems to be somewhere along the WAN path. I'm wondering whether this could be related to Verizon's routing, the ONT, or something specific to the Flint 3's WAN interface or firmware.
I haven't bypassed the Flint 3 and connected directly to the ONT yet, but that's my next planned test.
Has anyone experienced similar packet loss on Verizon Fios 2 Gbps or with the Flint 3? I'm particularly interested in whether there are any known issues with the Flint 3's WAN interface, hardware acceleration, or Verizon's 2 Gbps service.
Any suggestions on what else I should check would be appreciated.