Hi, I live in a remote area and rely on my Verizon JetPack for internet service. Last week, around April 15 give or take a day, I noticed that internet performance degraded when my camera was on during Zoom and Teams calls, but performance is fine when my camera is off.
I've done a lot of investigation and ruled out my own devices. I can run calls over a similar configuration to the AT&T network and they perform just fine. I believe I have isolated the Verizon problem to a specific antenna. My device attaches to this tower:
MCC / MNC / Region: 311 / 480 / 53812
eNB ID: 210664
When my device is communicating with Cell ID or on this tower, performance appears to be just fine. I can send video, receive video, share my screen, etc. But when my device is communicating with Cell ID, the trouble starts. If I run a ping test while on a video call, latency ranges from 35 to 50 ms (which is great performance), but will crescendo to 230+ ms, then 1,400+ ms, then I get request timeouts, then 1,400+ ms, then 300+ ms, then back to normal. People cannot hear my audio and my video gets choppy when this happens. It will spike like this while I am broadcasting video over the call; it does not do this when I am only receiving video and not broadcasting. When I am not on a call, I get the occasional spike to 105 ms latency but it a single ping in a sample of 100 or 250; it does not last for long.
Signal strength on Cell ID appears to remain constant, with RSRP0 in the -88 to -95 dBm range. Note that signal is considerably stronger on or, in the range of -77 dBm to -82 dBm. For some reason, my connection starts on one of these antennas but is transferred to during a call, and then performance fails when sending video.
I am on calls a lot throughout the day, and having video on is important. I hope this is enough information to investigate.