Wireless Receiver Brings Down Network When Plugged Into Ethernet
I have a 2-wire 802.11b/g gateway connected to a wired u-verse DVR and a u-verse WAP for the wireless receivers. I then have 2 wireless receivers. One of the receivers I use wirelessly, but the other is connected via ethernet because its primary location is very far from the WAP. Both receivers are paired with the WAP, but only one is actually running wirelessly.
This setup worked fine until this weekend, when the wireless receiver that was connected via ethernet started acting up. I rebooted that receiver, and it booted back up into update mode (gear with progress bar, then 2 gears with progress bar, then a few more reboots. then back up). Now, when I plug ethernet into that wireless receiver, it causing packet loss across my entire WAN. When I plug that receiver into the LAN, my other two receivers will start to show really gittery picture/audio, and a ping to Google's DNS (18.104.22.168) will start to have 50-60% packet loss. The second I unplug the ethernet from the wireless receiver, the problem stops.
I called tech support and the said they found a problem outside and were going to send an outside tech, but my service works fine as long as this one receiver isn't connected to ethernet. I've only seen packet loss like this before when two devices on the same LAN have the same MAC address.
Is it possible this could be because the wireless receiver is paired with the WAP and connected to the LAN at the same time? Doesn't seem likely, but the only other thing I can come up with is that the NIC on the receiver is shot. Either way, it feels like AT&T may be wasting my time investigating outside, unless there is actually another problem in addition to this one.