Sorry about your disconnections. Though you mention them specifically in relation to Wifi performance I do think that the elevated downstream power levels are a factor and would like these to be reduced.
10dBmV is the threshold and yours are higher than that. Please reply to my PM (purple envelope icon, top right of page) and I'll schedule an appointment for you.
In order to avoid making any new posts, wanted to ask you if someone could have a look at Network Log as a number of errors (critical appear). For some reason, I lose connection and gain it back as soon as I disconnect/reconnect from wifi. Thank you!