Galaxy S4 four times faster then Galaxy S7 on same WIFI 5ghz network

[AC Question]

My new Galaxy S7 edge registered download speeds of 22-25 Mbps on my WIFI 5ghz network.

My old Galaxy S4 registers download speeds of 80-90 Mbps on the same WIFI 5ghz network.

I have comcast as an internet provider.

Using a Linksys wrt 1900 acs router and a Motorola Surfboard sb6141 modem.

Called Samsung and they said the S7 should be faster. Why the big difference?

 

[mpgrahn]

This is an AT&T Galaxy S7 edge.

Samsung Tech Support concluded that this could be isolated to AT&T phones. It could be some AT &T software on the phone that is causing slower WIFI download speeds. Hopefully a patch will fix this.

Has anyone else who has an AT&T S7 edge phone experience this? If you have one, can you test to see if it occurs?