Forum Discussion
Intermittent Connectivity, Server Misconfigured
TELUS_Support I’ve been experiencing intermittent HTTP/HTTPS connectivity issues for about a month, primarily in the late evenings. Approximately 80-100% of TCP connections (ports 80 and 443) fail ...
Factors that contributed to this issue:
1) Telus selecting a low (512) TCP connection limit, below industry norms.
2) Telus having no way to inform subscribers that they are experiencing connection issues due to hitting this limit
3) The intermittent nature of the issue, related to the number of TCP connection and not the number of users or data throughput.
4) The difficulty of replicating the issue to aid in troubleshooting.
5) The 100% complete lack of knowledge by Telus support related to CG-NAT and Public IP's
6) Certain user devices consuming large amounts of TCP connections.
7) The TCP connection limit only applying to TCP IPv4 connections, while leaving UDP and IPv6 connections unaffected.
