Intermittent Connectivity, Server Misconfigured

This is the reply I received from a senior networking employee at Telus:

"Our current configuration limits CGN to up to 512 simultaneous ports for translation through our NAT infrastructure. It seems you are among a very small number of customers that are likely hitting that threshold. I would like to get you support to move your service to Public IP. You can call in to support and ask to be moved from CGNAT to Public IP."

Normally, this limit would not affect most customers, but I had an Android phone and an iPad that were each making 150 outgoing TCP connections, leaving the rest of the household with a very diminished connection pool. I was unable to determine what application on these devices was consuming so many TCP connections.

My interim solution was to use an open-source router that was capable of redirecting all network traffic through a VPN service. This resulted in speed limitations and increased ping times, but did restore web browsing ability. My final solution was to fight the uphill battle with Telus and have their support team change my account from CG-NAT to a Public IP. I would warn others that trying to have these changes made by Telus support is excruciating, and may take many, many calls to get it accomplished.