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Bug in site survey? [Resolved by full reset]

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I am trying to switch my router to Repeater mode, which requires scanning for AP.

I have tried multiple browsers, but the http://<bridge_ip>/QIS_wizard.htm?flag=sitesurvey_rep page cycles endlessly, and does not find any access points (the main router is just downstairs, and there are neighbor systems).

In a different thread @RMerlin suggested looking at the Javascript log:
The key "target-densitydpi" is not supported.
QIS_wizard.htm:11 GET net::ERR_ABORTED 404 (Not Found)
jquery.js:5 [Deprecation] Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check https://xhr.spec.whatwg.org/.
QIS_wizard.htm?flag=sitesurvey_rep:23 The key "target-densitydpi" is not supported.
handler.js:1581 Uncaught TypeError: httpApi.hookGet(...).sort is not a function at handler.js:1581

Might this be a bug in 384.9?

Line in question is:
siteSurveyResult.aplist = httpApi.hookGet("get_ap_info", true).sort(function(a, b){return parseInt(b[5])-parseInt(a[5]);});
Last edited:
The problem I am having is part of the router setup mode, but it is the initial step where the router scans for access points to bridge to, and not finding any. The screen looks like this:

The tool you linked to is very helpful once you get past this part :)
Which routers are you using? What are the channels you have selected for the Wireless on the main router? Are they set to Auto or manual? Are they DFS channels, possibly? If so, change them to non-DFS channels and your AP should be able to see the main router you want to connect to.

Btw, the screenshot in post 3, is that your AP or your main router searching?
Both routers are RT-AC86U running the latest 384.9/ The main router wi-fi 5GHz is set to auto, 80MHz, currently using channel 161. I don't really know what DFS is, but a web search suggests that 161 is not a DFS channel.

The screenshot is from the bridge router trying to find the main router. It's not seeing any routers, not mine or my neighbors. If I use the Wireless > Wi-Fi Radar > Wi-Fi Site Survey on the client, I see my main router and neighbors' routers. But from the setup wizard, nothing but a spinning icon. It's the first screen after selecting a new mode, e.g. Repeater or Bridge.

Don't you think the javascript error is significant?
The key "target-densitydpi" is not supported.
Try using a different make of browser.
That was just a warning on Chrome, but the error (httpApi.hookGet(...).sort is not a function) consistently happens on IE 11, Firefox 59, and Chrome 72.
Do a full reset on the bridge router, via GUI and reset pin on the back of the router and then perform an additional WPS + power button reset.

This bridge router is stuck somehow on old settings/microcode that the above should hopefully clear up.
Ah, that makes sense, thanks! I had some strange behavior on one of the beta upgrades. I'll go do a full reset and try again.
Just to follow up, the links in your signature were very helpful, and my router is now working properly. Thanks!

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