Question about WMM on C7000v2

[txyuan]

I began to experience frequent disconnections during zoom meetings. When I ping 8.8.8.8 or 192.168.0.1, it shows frequent "timeout"(3%-9%). Some of the posts suggested to disable WMM, so I did. It solved the problem. No more 'timeout" when I ping 8.8.8.8.  However, after I disabled WMM, the internet speed maintained between 20-30MB/s which is lower than the average. Once I I turned on WMM, the speed went back to 70-90MB/s, but the frequent 'timeout' also occured while I pinged the router.

How can I solve this problem? Thanks.

[plemans]

Leave wmm on. 

have you noticed if you're connected to the 2.4ghz or the 5ghz?

2.4ghz is slower and more sensitive to interference

[txyuan]

The same problem occurs, no matter I connect to 2.4 or 5GHz wifi.

Thanks.

[plemans]

does it happen hardwired? 

have you tried changing mtu size? 

Ping Test to determine Optimal MTU Size on Router | Answer | NETGEAR Support

How do I change the MTU size on my NETGEAR Wireless Router/DSL Gateway? | Answer | NETGEAR Support