Repeater use WPA2 TKIP instead of WPA2 AES resulting in weak security. Considering this has been updated on other models why is it not the case for RE455? I just purchased it and I already regret it,

Hi, I was unable to find a setting to manually force the use of a specific 4G band. For example, sometimes the router uses the band 20 instead of 1/3/7 which are much more faster than the 20 one, resu