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Forum Discussion
PeterHK
Jan 24, 2022Guide
Zoom and Unstable Internet
I’ve recently encountered a problem where I cannot receive Zoom audio and receive Internet Unstable messages. I have the RBR850 with 3 wired satellites and a 1GB fibre optic internet connection, uploa...
- Feb 19, 2022After much frustration I have finally resolved the audio issues with Zoom, this follows extensive troubleshooting with the local support team, who have been excellent and even provided a complete replacement of new hardware with the problem continuing. The local support provided an advance load of firmware 4.6.7.5_2.1.7 and Zoom audio is now working normally regardless of Wifi, LAN,etc.
Patone407
Feb 04, 2022Tutor
In addition to the pre-release firmware version from the above post, you should also take a look at the "Disable SIP ALG" setting in Advanced tab...Setup...WAN Setup.
I was encountering the same problem as you while testing an Orbi RBK752 given to me that used to be what my brother was using. When I received it I updated to the current production firmware release and when I saw the pre-release firmware I switched to it.
I thought all was well, speed matches my ISP plan, and YouTube & Roku video streaming is fine. Until I noticed that only in Zoom calls there were frequent "Unstable internet" notifications, cyclical audio freezes (several times a minute), and occasional video freezes.
I do not see the symptoms when I swapped out the Orbi with my regular Netgear R7450 router, that I've used since 2018, on the same 6 person group Zoom call.
I compared the settings and the big difference was the "Disable SIP ALG" WAN setting. So I unchecked "Disable SIP ALG" on the Orbi to match what my Netgear R7450 had and things have been fine with Zoom thru the Orbi for about 10 days now. Apparently the state of the SIP ALG setting can affect VOIP / video communications apps.
FURRYe38
Feb 04, 2022Guru - Experienced User
What FW version are you using?
I believe Disable SIP ALG is enabled by default in FW.
Patone407 wrote:
In addition to the pre-release firmware version from the above post, you should also take a look at the "Disable SIP ALG" setting in Advanced tab...Setup...WAN Setup.
I was encountering the same problem as you while testing an Orbi RBK752 given to me that used to be what my brother was using. When I received it I updated to the current production firmware release and when I saw the pre-release firmware I switched to it.
I thought all was well, speed matches my ISP plan, and YouTube & Roku video streaming is fine. Until I noticed that only in Zoom calls there were frequent "Unstable internet" notifications, cyclical audio freezes (several times a minute), and occasional video freezes.
I do not see the symptoms when I swapped out the Orbi with my regular Netgear R7450 router, that I've used since 2018, on the same 6 person group Zoom call.
I compared the settings and the big difference was the "Disable SIP ALG" WAN setting. So I unchecked "Disable SIP ALG" on the Orbi to match what my Netgear R7450 had and things have been fine with Zoom thru the Orbi for about 10 days now. Apparently the state of the SIP ALG setting can affect VOIP / video communications apps.