Hey @RogersAndy , thanks for taking a look at my post!
My network setup when I captured those logs was following - CODA modem (bridge mode)--> Netgear ORBI AC3000.
- Were your tests run with an ethernet cable directly to the modem? --> No, my laptop was connected through WiFi. Although, we have a computer that is directly connected to Orbi router and it also ended up with dropped connections at the time. Every device went offline for 3-5 mins. I checked router logs and there were no restarts/link flaps/errors in Orbi's logs.
- Do you have your own router/switch connected? --> Answered above.
- Have you been able to replicate this latency during moments of impact since? --> I have started to monitor latency closely since last couple of days. I haven't seen this happen again. However, random drops continue everyday. For instance, this is from today afternoon when connection got really unstable (zoom/teams/google classroom couldn't work):
13:18:25.36>tracert 8.8.8.8
Tracing route to dns.google [8.8.8.8]
over a maximum of 30 hops:
1 1 ms 3 ms 3 ms 192.168.1.1
2 6 ms 4 ms 3 ms CODA4582 [192.168.0.1]
3 * * * Request timed out.
4 * * 82 ms 69.63.242.5
5 20 ms 11 ms 14 ms 209.148.231.93
6 * * * Request timed out.
7 * * * Request timed out.
8 * 3023 ms 31 ms 72.14.216.54
9 29 ms 22 ms 26 ms 172.253.72.7
10 22 ms 28 ms 23 ms 216.239.35.235
11 22 ms 28 ms 17 ms dns.google [8.8.8.8]
Last night I had switched CODA modem to gateway mode because its GUI becomes inaccessible in bridge mode, and I don't mind additional latency of 3-5 ms over the convenience of monitoring through modem GUI. Secondly, with modem and router in gateway mode I can see where the delay or the drop is happening. Another thing, yesterday I noticed that Rogers' DHCP server started giving out IP lease for an hour at a time for most of the day.
This evening I have switched my WiFi router to AP mode and the modem remains in gateway mode. Let’s see how this goes. I still have a TV and a laptop directly plugged into Orbi router (AP mode), so that the WiFi remains out of equation for those 2 devices at least.
I can't remember having this kind of an issue even once in last couple of years until a couple of months ago when the drops began to happen. These drops last anywhere from 15-30 seconds to several minutes and it recovers on its own. My observation is that most of the time these problems always appear sometime between 3:30-4:30 pm. I have never experienced these kinds of drops after 5:00 pm or before noon or on weekends.
Earlier this year when lockdowns started the data rates surely went down but there were never any drops, and now drops have become a daily affair. I have spent hours trying to get in touch with the customer care on chat, but it always ends with a conversation that involves factory reset of modem and monitor for a few more days. I am always told that the results of line tests look great so reset of modem may help. Today for the first time some tech on chat realized that resets are not helping, and he said he would raise a ticket with the network team. I have shared all ping/tracert logs that have gathered in last couple of days.
I hope this gets resolved soon!
