Member Avatar for commando1200

I have an arris cable router that supports both 2.4 and 5 GHz bands, I used tools to find out which channel for each I should be using in my case it is cannel 1 for the 2.4 and channel 44 for the 5. On wifi i get a down speed of about 108 Mbps and an up rate of about 18 Mbps for both the 2.4 and 5 GHz as they are configured to be using open channels for my area, but when i switch to an ethernet connection my down speed suddenly spikes to 198 Mbps and upload remains about the same. Is there a way to configure this is my router? If it helps my router model is DG1670 by Arris.

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A compact, practical diagnostic note to supplement the thread (and to follow up on ’s observation and ’s point about channels).

Wireless will often measure lower than a wired link because the radio is shared, has protocol overhead, and is sensitive to interference and client capability. A quick, methodical isolation will show whether the problem is the Wi‑Fi link itself, the router/AP, or the ISP/WAN.

Quick tests to isolate the bottleneck (run these from two local machines whenever possible):

# Windows: check adapter and interface
netsh wlan show drivers
netsh wlan show interfaces

# Linux: check link and scan
iw dev wlan0 link
sudo iwlist wlan0 scanning

# Local LAN throughput (iperf3)
# On a wired machine: 
iperf3 -s
# From the wireless machine:
iperf3 -c <wired-host-IP> -t 30 -P 4

# Simple latency check
ping -c 20 8.8.8.8

Interpretation: if the LAN iperf result is much lower on Wi‑Fi than on wired, the radio/SSID/client settings are the bottleneck. If wired and wireless LAN tests are similar but both are below expected ISP rates, investigate router WAN/NAT, ISP speed, or QoS settings.

Common fixes and checks

  • Update router firmware and client Wi‑Fi drivers.
  • Use 5 GHz when possible and set channel width sensibly (avoid wide bonding on crowded 2.4 GHz).
  • Prefer modern modes (n/ac/ax) and WPA2‑AES or WPA3 (avoid TKIP).
  • Ensure WMM is enabled and disable legacy 802.11b rates if possible.
  • Temporarily move the client close to the AP, disable other radios, and retest to rule out interference.
  • If the router shows high CPU or NAT/firewall load, test bypassing features or temporarily using a different AP to see if hardware limits are the cause.

Also note ’s moderation reminder about duplicates. These steps give a repeatable way to identify whether configuration, hardware, or the ISP is at fault.

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Member Avatar for rubberman

Double posting doesn't buy you anything. Please ask for this copy to be removed as the answers you want are already on the other thread.

Member Avatar for rproffitt

I thought we dove into this. My bet is you didn't want to read up on channels and why I never use channel 1.

Posting again? Let's hear what you want to try next in your old post.

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