Internet connectivity issue with QOS enabled

[moosport]

I'm having issue with basic Internet browsing when Ooma VOIP phone is in use.
Router is E4200 with QOS enabled for Ooma set to high.

The network setup is cable modem -> router -> Ooma and Procurve switch.

There are 3 IP cam to Zoneminder. I could not even login to the router except the switch.

Should I reset the QOS to medium instead of high? Broadband connection is 29mbps down/1.3mpbs up.

 

[overdrive31]

Don't enable QoS in the router, just put the Ooma in the DMZ, or in front of the router(might sacrifice throughput though).

 

[moosport]

I lowered the QoS setting to medium to test if there is any improvement.