Frequent network drops (NM, FC29)?

[Derek Atkins <derek ihtfp com>]

HI,

I'm having an issue on my Fedora-29 laptop where my Wifi shows periodic
network drops.  I'm running mtr and it's working fine, but then it
effectively stops transmitting packets for a few seconds, and then it
starts up again.  This pause coincides with the following entries in my
/var/log/messages:

Apr 29 10:23:25 securerf wpa_supplicant[1899]: wlp0s20f0u2: CTRL-EVENT-DISCONNECTED bssid=dc:7f:a4:67:5a:a5 
reason=0
Apr 29 10:23:25 securerf wpa_supplicant[1899]: wlp0s20f0u2: CTRL-EVENT-REGDOM-CHANGE init=CORE type=WORLD
Apr 29 10:23:25 securerf wpa_supplicant[1899]: wlp0s20f0u2: CTRL-EVENT-REGDOM-CHANGE init=USER type=COUNTRY 
alpha2=US
Apr 29 10:23:33 securerf wpa_supplicant[1899]: wlp0s20f0u2: Trying to associate with dc:7f:a4:67:5a:a5 
(SSID='ATT234H8Fp' freq=2462 MHz)
Apr 29 10:23:33 securerf wpa_supplicant[1899]: wlp0s20f0u2: Associated with dc:7f:a4:67:5a:a5
Apr 29 10:23:33 securerf wpa_supplicant[1899]: wlp0s20f0u2: CTRL-EVENT-SUBNET-STATUS-UPDATE status=0
Apr 29 10:23:33 securerf wpa_supplicant[1899]: wlp0s20f0u2: CTRL-EVENT-REGDOM-CHANGE init=COUNTRY_IE 
type=COUNTRY alpha2=US
Apr 29 10:23:33 securerf wpa_supplicant[1899]: wlp0s20f0u2: WPA: Key negotiation completed with 
dc:7f:a4:67:5a:a5 [PTK=CCMP GTK=CCMP]
Apr 29 10:23:33 securerf wpa_supplicant[1899]: wlp0s20f0u2: CTRL-EVENT-CONNECTED - Connection to 
dc:7f:a4:67:5a:a5 completed [id=0 id_str=]
Apr 29 10:23:33 securerf wpa_supplicant[1899]: bgscan simple: Failed to enable signal strength monitoring

Any ideas how to debug or, better yet, fix this?  I have already
rebooted my wifi router.  I am sitting 15-20 feet away with an almost
direct line-of sight, but I can literally be sitting 3 feet away and
still have this issue.  Other systems on my network don't appear have
this kind of issue.

Thanks,

-derek

-- 
       Derek Atkins                 617-623-3745
       derek ihtfp com             www.ihtfp.com
       Computer and Internet Security Consultant