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Forum Discussion
Zoom is continously displaying low bandwidth and screen sharing lags
I've been trying to solve a similar issue on RBR850 with three RBS850. running Zoom. Zoom is continously displaying low bandwidth and screen sharing lags (although it get there in the end) I followe...
Before updating:
Same happens with Traffic Meter disabled?
Disable IPv6 on the RBR and test Zoom?
Enable SIP ALG and test?
What is the Mfr and model# of the Internet Service Providers modem/ONT the NG router is connected too?
Be sure your using a good quality LAN cable between the modem and router. CAT6A STP is recommended.
Does this happen with the RBS turned OFF?
Does this happen with both wireless and wired devices connected to the RBR?
I've been trying to solve a similar issue on RBR850 with three RBS850. running Zoom. Zoom is continously displaying low bandwidth and screen sharing lags (although it get there in the end)
I followed all the suggested setting changes including:
Disable Guest network
Wireless Settings: 2.4Ghz Channel to 01
Wireless Settings: 5Ghz Channel to 48
Disable SIP ALG on (set to open)
Advance Wireless Settings: enable WMM (2.4Ghz) 2347 (Short Preample/50%)
Advance Wireless Settings: enable WMM (5.0Ghz) 2347 (Short Preample/100%)
IPV6 - Get Automatically from ISP ( I can't see how to turn off other that use a DNS Server)
IP Adddress Assignemtn - Auto Config
Traffic Meter is enabled with traffic volume contro by no limit
My internet speed seems fine 109 Mbps download /40Mbps upload - backhaul status reports as good
I'm using a Mac for Zoom which is wireless connnected to the RBR850 router, and have tried both wirelessly connecting and wired connected to the satellite.
The same lag and still the warning exists.
The firmware i old V4.6.9.11, so that is next up.
Just wondered if you or anyone else had resolved or have a recommended firmware version that work without disrupting all else?
Enable SIP ALG and test?
FYI, Zoom calls from the Zoom App and web browser don't use SIP. Which appears to be the case here (connecting from a Mac).
But if DeaneHornsby is dialing in from a SIP device, then this test would be useful.
I leave SIP ALG enabled on all my routers. Haven't had any problems with it being enabled and Zoom and Teams all work finr. Last meeting with NG was over zoom and worked well with my Mac Book Pro 2018. Why I suggested testing it anyways. Also SIP ALG is something we test for in beta projects to help check this as well.
Also SIP ALG is something we test for in beta projects to help check this as well.
It's not possible to test if it is working as designed, unless you analyze wireshark traces of actual SIP calls. I guess you can see if SIP calls go through or not, but I don't think that tells you much without a trace. We know that the ALG can interfere with infrastructure for NAT traversal, so it might be working as intended even when calls don't go through.
You can see if it misbehaves on non-SIP traffic, though seems really unlikely unless someone is using port 5060 or 5061 for another purpose. The zoom video app (and browser) conferences don't use those ports. So I don't think that test is useful here, unless DeaneHornsby happens to be using a VOIP phone to connect to the conference.
