Over the month I have received reports for co-works that the internet becomes unbearably slow for short periods of time. I was in the office yesterday, and was able to experience this phenomena http://stage.results.speedtest.comcast.net/result/286585992.png.
This would be opposed to what I have come to consider our peak speed http://stage.results.speedtest.comcast.net/result/286917332.png, which is of course no where near what you'd expect from "EXTREME 105".
Additionally there has been an increase in constant packet loss. I've tested this outside our internal network, just running directly from the Comcast gateway.
Also I've had DNS issues since our switch to Comcast. Ping 18.104.22.168 & 22.214.171.124 generally returns "Request timed out", with a few (less than 10%) making it through with > 40ms.
This issue has reoccurred today. Co-worker reported internet was down. I responded "No way we have Comcast", but sure enough connection was down. Immediately called and went to gateway. Support requested cycling power. I just hit the reset button, few minutes later back online.
Inquires to phone support said that they did not detect anything on their end or gateway. Said that it must be whatever device is connected to it. Pass that buck...
To monitor issues and confirm that it is not some device that has had tried and tested success over the years, I connected a stand alone PC directly to another gateway port. Connectivity is lost on this machine as well as everything behind the router. To me that nulls the rogue connection destroy device hypothesis.
Eventually need this issue resolved. We've offsite backup, video surveillance, a remote branch, and outside sales staff.
Dug around and found ping issue. Not an issue ICMP limiting.
Have not had to hit the modem reset since last post.
Speed has not actually improved, but it seems closer to the service we actually have.....
Looking over the bills I noticed a note stating that Comcast decreased the cost of "EXTREME 105", but this was not reflected in our bill. I asked AP to check look into this. After a lengthy call they reported back that Comcast miss labeled the the bill. We have "Deluxe 50".
More time wasted chasing Comcast Chickens with heads cut off. The support and practices expected from a de jure monopoly.