I have an Alienware 16 Aurora AC16250 that worked normally for over a year, but it recently began experiencing severe packet-loss spikes while gaming. Loss rises to roughly 20–40% for about 10 seconds, repeating approximately every 30 seconds. The problem occurs over both Wi‑Fi and Ethernet, and the wired adapter is a Realtek PCIe GbE Family Controller.
I have restarted the computer and network adapter, checked cables, contacted Spectrum, replaced the network equipment provided by my ISP, installed all available manufacturer updates, run hardware diagnostics, disabled and re-enabled the adapter, checked for driver updates, and released and renewed my IP address. The ISP says the connection is functioning normally, but the issue continues. A Dell service request is already in progress, though I would like to determine whether this could be a hardware or local-network problem before sending the laptop in. What other tests or hardware checks should I try?
4 Answers
Check whether the loss occurs between the laptop and the router or only beyond the router. In Windows, open Command Prompt and run `ipconfig` to find the Default Gateway, then run `ping -t `. You can also test an outside address with `ping -t 1.1.1.1`. Stop either test with Ctrl+C. Loss to the gateway points to the laptop, Wi‑Fi, Ethernet, or router; loss only to the outside address suggests the modem, ISP, or upstream route.
For the Realtek adapter, open its Properties in Device Manager and check the Advanced tab. Temporarily disable Auto Disable Gigabit, Energy Efficient Ethernet, Green Ethernet, and similar power-saving options if they are present. You can also test forcing Speed & Duplex to 1.0 Gbps Full Duplex instead of Auto Negotiation, then revert it if the connection becomes worse. These settings are worth testing, but the repeating pattern could still come from the router or a software process rather than a failed adapter.
Because the problem occurs over both Wi‑Fi and Ethernet, the individual network adapters are less likely to be the cause. Try connecting a USB Wi‑Fi adapter as a separate test, but also compare the behavior with other devices on the same network. If phones, TVs, or another computer have no packet loss, the laptop becomes the main suspect.
First, test the laptop on a completely different network, such as a friend’s connection or a public hotspot. If the packet loss follows the laptop, the problem is likely local to the computer. If it only happens at home, focus on the router, modem, cables, or other network equipment.
I haven’t tested it on another network yet, but that sounds like a useful way to narrow it down.
I wasn’t sure which command to use, so the `ipconfig` step and gateway address example help.