Erratic network behavior
October 20, 2008 12:39 PM Subscribe
My net connection has dropped like clockwork around midnight over the past few days. What's up?
posted by Gyan to computers & internet (5 answers total)
For the past 4 or 5 days, around midnight, give or take 10 minutes, I lose my net connection and don't get it back till morning. It doesn't happen during the day.
At first, I thought it was my router Netgear WGR614 v7 since it has been flaky before. But I bridged my LAN/WAN cables together (my ISP has a switch in the building and I get a CAT-5 direct from there) and the issue persists.
So, I try to ping the gateway but can't, and Wireshark shows other customers trying to get the gateway's MAC via ARP. BTW, I am assigned a static private IP i.e. behind a NAT, due to "scarce IPs".
So, today morning, with my connection on, I note down my gateway's MAC. An hour ago, my connection dropped momentarily. When I checked my gateway MAC, it was different than in the morning. When I flushed ARP and checked again soon after, it was different again and was a 3rd set of numbers, this time I could resolve names but not connect anywhere; this one also happened to be listed twice i.e. for another IP as well. I noted all numbers, and tried each as a static entry. The first one (morning) worked but was erratic (dropouts), the middle one seems to work normally (so far), and the final one doesn't.
What seems to be going on? Local or remote?
My OS is XP SP2. This is in India.