@Nhaley pointed out that I should look in the Hub’s Event List to see what’s happening when I run a network repair. This is kind of a revelation, because looking at the HUB, I see that I have a few “ghost” devices which I’ll have to remove as explained by @ahndee.
But I suppose, just as important, I have heaps of the Err 101 errors discussed here.
Just a small portion of the Hub’s Log:
2017-06-18 1:43:48.381 PM SAST
3 hours ago HUB Err 101: ZW module not respon... Err 101: ZW module not responding
2017-06-18 1:43:48.381 PM SAST
3 hours ago HUB Err 101: ZW module not respon... Err 101: ZW module not responding
2017-06-18 1:43:48.380 PM SAST
3 hours ago HUB Err 101: ZW module not respon... Err 101: ZW module not responding
2017-06-18 1:43:48.378 PM SAST
3 hours ago HUB Err 101: ZW module not respon... Err 101: ZW module not responding
2017-06-18 1:43:48.058 PM SAST
3 hours ago HUB Err 101: ZW module not respon... Err 101: ZW module not responding
2017-06-18 1:43:45.235 PM SAST
3 hours ago HUB Err 101: ZW module not respon... Err 101: ZW module not responding
2017-06-18 1:43:45.230 PM SAST
3 hours ago HUB Err 101: ZW module not respon... Err 101: ZW module not responding
2017-06-18 1:43:45.227 PM SAST
3 hours ago HUB Err 101: ZW module not respon... Err 101: ZW module not responding
2017-06-18 1:43:45.227 PM SAST
3 hours ago HUB Err 101: ZW module not respon... Err 101: ZW module not responding
2017-06-18 1:43:45.225 PM SAST
3 hours ago HUB Err 101: ZW module not respon... Err 101: ZW module not responding
2017-06-18 1:43:42.045 PM SAST
3 hours ago HUB Err 101: ZW module not respon... Err 101: ZW module not responding
2017-06-18 1:43:42.045 PM SAST
3 hours ago HUB Err 101: ZW module not respon... Err 101: ZW module not responding
2017-06-18 1:43:42.044 PM SAST
3 hours ago HUB Err 101: ZW module not respon... Err 101: ZW module not responding
2017-06-18 1:43:42.043 PM SAST
3 hours ago HUB Err 101: ZW module not respon... Err 101: ZW module not responding
2017-06-18 1:43:42.040 PM SAST
3 hours ago HUB Err 101: ZW module not respon... Err 101: ZW module not responding
2017-06-18 1:43:39.194 PM SAST
3 hours ago HUB Err 101: ZW module not respon... Err 101: ZW module not responding
2017-06-18 1:43:39.193 PM SAST
3 hours ago HUB Err 101: ZW module not respon... Err 101: ZW module not responding
2017-06-18 1:43:39.192 PM SAST
3 hours ago HUB Err 101: ZW module not respon... Err 101: ZW module not responding
2017-06-18 1:43:39.191 PM SAST
3 hours ago HUB Err 101: ZW module not respon... Err 101: ZW module not responding
2017-06-18 1:43:39.191 PM SAST
3 hours ago HUB Err 101: ZW module not respon... Err 101: ZW module not responding
2017-06-18 1:43:36.298 PM SAST
3 hours ago HUB Err 101: ZW module not respon... Err 101: ZW module not responding
2017-06-18 1:43:36.289 PM SAST
3 hours ago HUB Err 101: ZW module not respon... Err 101: ZW module not responding
2017-06-18 1:43:36.289 PM SAST
3 hours ago HUB Err 101: ZW module not respon... Err 101: ZW module not responding
2017-06-18 1:43:36.284 PM SAST
3 hours ago HUB Err 101: ZW module not respon... Err 101: ZW module not responding
2017-06-18 1:43:36.284 PM SAST
3 hours ago HUB Err 101: ZW module not respon... Err 101: ZW module not responding
2017-06-18 1:43:33.108 PM SAST
3 hours ago HUB Err 101: ZW module not respon... Err 101: ZW module not responding
2017-06-18 1:43:33.107 PM SAST
3 hours ago HUB Err 101: ZW module not respon... Err 101: ZW module not responding