I am not looking to rant about throttling just get a resolution to an issue that seems unlikely to be solved through the support line.
.....I have had two occasions (in over 10 years of Cox Internet service) where I can consistently "break" my connectivity by running a heavy uplink bandwidth application. The first occasion was in 2013... Through normal support I ended up having a tech to the house and got a new cable modem and the max throughput was improved some, but the failure behavior was unchanged. In this case I solved my issue by enabling a software throttle on the application itself (this application was Google Drive Sync while trying to to an initial upload of ~600gb of media).
The second occasion is during the last few days... this time I have upgraded my plan (From Preium to Ultimate plus 500GB extra data limit). With this I received the latest Arris firewall/modem. I have also removed my own firewall from the equation. Again, my general performance is improved but I still "break" my connection whenever I run a particular up-heavy application, every time. This time it is Microsoft's Sharepoint Migration Tool, which bulk uploads data to Office 365. In this case, I don't have the option to throttle the software (but my work deadline for getting this content uploaded is 5 days away and I'm getting nervous with no solution).
By "Break" my Internet I mean that the upload ability decreases to such a point that the service is effectively unusable.On speed tests it show 0.8 mbit or so, but it is slow enough that web pages time out and so forth... broken. And in any case I am unable to use this particular application to do the uploads I need to use this app to do the uploads (and would gladly do that at anything near my purchased 30 mbit service level). This failure mode seems to last about an hour or two. It seems that resetting the modem makes no difference in this but I probably have not experimented enough to know for sure. In the meantime, with at least a couple resets it always comes back on its own in an hour or two. In this failure mode, it makes no difference what my destination is.... speed test... any web site, etc. So this is certainly not a path-specific throttle or a destination-implemented throttle.
So my question is... should it be ever be possible for me to do ANYTHING as a network user that would cause my network performance to change and change with a memory (i.e. not just an instantaneous change but a dgradation that persists independent of anything going on on my local network)? (and if so how can avoid it?) I have about a TB to upload and 30 mbit would be just fabulous, and this is within what I have paid for.
If there is no reason to believe this "memory" is intentional in the Cox network, then I would love to try any troubleshooting you would recommend beyond the normal stuff I would have to spend a lot of time on with the support line.... I.e. I just (successfully) activated a new service today and have all new equipment, so I think we can safely say we can rule out the "usual stuff". My only regret is that I didn't "break" it while the activation agent was still on the line ;)
Hope that info is useful, Please let me know if I can provide any other details.
Thanks in advance