I just wasted the last 3 hours on f/w version 2769 !!!
I should have listened to my gut - which was telling me:
"If it ain't broke - then don't fix it"
When I bought my RT-AC87u last week, it had firmware version 2061.
I found the UI to be a bit buggy, but for the most part, it worked (especially the QoS).
Fast forward to tonight (Sunday night).
I decided to upgrade to the latest firmware - version 2769.
Big mistake, and a waste of 3 hours !!
For those of you who will ask - yes, I did reset to factory settings after the upgrade, and re-entered everything again from scratch.
Here's what was wrong with 2769 for me:
- very buggy UI using Internet Explorer v11 (latest version)
You could basically forget about trusting any information on the screen.
As an example, the Adaptive Qos screens. When you clicked on the QoS TAB to set it up, it would show you only partial parts of the bottom of the screen (ie, the top was simply cut off and not there) and it was frozen in that position. Also, clicking on anything there would not work at all.
The Bandwidth monitor would not even recognize the proper traffic from the proper device, nor display the totals properly on the dashboard gauges.
- QoS DID NOT WORK !!!
I set up my QoS as Traditional, (just as I did on firmware 2061), giving it the highest priority (this is for my Vonage VoIP device).
When I tested it, it did not work at all - the voice was completely garbled and cut out altogether. I tried rebooting the router - no change. I tried disabling QoS, rebooting, then enabling QoS again. This (seemed) to work - as I tested it a few more times, and the voice quality was ok. This was short lived. My gut was telling me to test it a few more times, so I did - and it started garbling again, and cutting out again !!
Enough was enough.
I loaded version 2061 back on the router, reset to factory defaults (red reset button on back of router), configured everything again, then tested.
As before, QoS worked WELL again - as it should.
I tested it for another 30 minutes or so, just to make sure, and the QoS remained rock-solid (reliable).
I will keep 2061 for the forseeable future, until I feel stupid enough to try a (new) firmware from Asus again - and waste another few hours troubleshooting everything.
By the way, even on 2061, I don't trust Internet Explorer.
Firefox has NO issues displaying the UI correctly.
IE is unreliable, even in compatibility mode.