I have the FritzBox 7490 and was wondering if it is possible to change the channel width for the 5Ghz band to only 20/40mhz? Reason: my laptops (Windows and Mac) keep disconnecting when using the 5ghz band 802.11ac but when connected to the 2Ghz, problem gone/never disconnects. Oh and I found that the 5ghz is mostly connected to 80mhz from the wifi scanners.
I know the that HG659 can set the wifi 5ghz to only use 20/40mhz channel width...not sure about the FritzBox 7490.
P.s. Router is pretty close to me..like 2 steps to get there.
P.s.1 Have done a lot of wifi diagnostic. Just a friendly fyi :D.