Title: For several years, I&#x27;ve run 3 VOIP phones from my house.  About a week ago they stopped working.  SIP REGISTER started failing.<p>Turns out Spectrum now blocks TCP&#x2F;UDP port 5060.  My workaround is to use a VPN.  After that, everything is fine.<p>This reddit thread https:&#x2F;&#x2F;www.reddit.com&#x2F;r&#x2F;networking&#x2F;comments&#x2F;t8nulq&#x2F;spectrum_is_rate_limiting_voipsip_traffic_port&#x2F; suggests Spectrum was rate limiting 5060 on 300mbps plans, but not on the 100mbps plans.<p>I have the 100mbps plan, and it is definitely affected now.<p>So if you are in SoCal, using Spectrum, and your VOIP phones suddenly stopped working in the last week or so, maybe this will help you.
Upvote: