Upgraded my AC68U to 386.4 and now my Fios 1gig speeds are down to 280mbps instead of 800-900 mbps. Please help.

[Peter Franco]

Ever since I upgraded from AC68U to 386.4 my Fios gig internet has been pretty much cut in by over half. from 800-900 mbps to 280 mbps max. I confirmed this by connecting my PC directly to the Verizon drop and received speeds of 800mbps plus. I switch ports and on the router and disabled QoS, Traffic Analyzer, and Ai Protection and still no go. I do have a notification that the NVRAM is low but half is still free. HW acceleration is enabled. Anything else I'm missing?

Any help would be appreciated.

 

[ColinTaylor]

It does sound like hardware acceleration is disabled for some reason. What does it say at Tools - System Information > Network > HW acceleration

 

[Peter Franco]

It does sound like hardware acceleration is disabled for some reason. What does it say at Tools - System Information > Network > HW acceleration