said by gwalk:James, just for giggles have you ever went into the hughes modem advanced pages and modem router pref from default to the ALT setting
Why no I haven't Gwalk! (Is that a new setting? I haven't noticed it before.) The way that I have it cabled, my Time Capsule should be functioning like a network switch. And I know that I tried direct cabling early on in my Gen4 slowness. Anyway, thanks for the suggestion. I did try your suggestion, and here are the results of my experiments:
(Sorry for the poor formatting. I've been doing speed tests for the last hour, and now I'm tired.
)
Date Download Upload
ALT: wifi
11/23/2013 16:43:34 442 630
11/23/2013 16:41:13 1455 971
11/23/2013 16:39:52 663 712
11/23/2013 16:35:53 706 784
11/23/2013 16:33:46 1870 820
11/23/2013 16:32:27 2165 921
11/23/2013 16:31:29 1065 946
11/23/2013 16:29:51 2206 791
default: wifi
11/23/2013 16:23:31 1428 1002
11/23/2013 16:21:58 1387 756
11/23/2013 16:20:08 2445 854
11/23/2013 16:19:03 1172 923
ALT: cat6 to modem
11/23/2013 16:10:46 803 830
11/23/2013 16:06:40 613 676
ALT: Time Capsule/switch
11/23/2013 15:53:55 970 612
11/23/2013 15:51:44 728 945
11/23/2013 15:49:58 891 962
ALT: wifi is the ALT setting using the Time Capsule's Wi-Fi.
default: wifi is the default setting using the Time Capsule's Wi-Fi
ALT: cat6 to modem is self explanatory
ALT: Time Capsule / switch the the way that I normally cable Gen4
We know that the Wi-Fi card in my Mac isn't defective since it works so well with Exede-12. (And Gen4 is slow with my Macbook Pro and other devices too.) My cat6 cable is high quality, relatively new, and works quite well for backups.
I just don't think that
my hardware is the cause of the problem. (I have tried another Apple router besides the Time Capsule, but with no difference.) The only "pattern" which I have noticed is that sometimes Gen4 works close to advertised, and sometimes I get speeds like those above. Sometimes I can watch SD video with Gen4, but sometimes I can't.
Right before I made my first post on this topic, I performed two speed tests and got these results:
11/23/2013 13:50:43 3201 776
11/23/2013 13:49:36 7957 872
My speeds went downhill from there.