I have Fios Internet with 1Gbps download and upload.  With I have the Deco wireless network in Router mode, the download and upload speed are pretty close to my 1Gbps speed, 883Mbps download and 911Mbps upload.  When I switch it to AP mode, the speed of the download drops to 500Mbps while the upload speed remains at 900Mbps. While I used my laptop to do a speed test, the download also limits me to the 500Mbps speed.  When I connected my laptop directly to the Fios router, then my download and upload speed is the normal 1Gbps speed.  I then connected my laptop via Ethernet to the main Deco unit through the second Ethernet port, I get the reduced download speed of 500Mbps.  This shows me that it's not an Internet problem, but rather the Deco in AP mode.

In my setup, I have two Deco M9+ units both directly connected to my Fios router via Ethernet.  This shouldn't present a problem, but just to be sure, I removed the satellite unit.  I then did the test again and I get the 500Mbps download speed in both Router mode and AP mode, which was strange.  I had to default reset the units and reconfigure the entire system to get back the download speed of 1Gbps speed in Router mode.  I then switched to AP mode and the same thing happened, the download speed was reduced to 500Mbps.  Is this a firmware issue, or is this by design?  I can't imagine why my download speed would be reduced in AP mode by design?

By the way, I already have a case opened with Tech Support but wanted to check with the community.