Jolla C cannot use my router's WiFi; how do I troubleshoot?

asked 2016-12-30 23:59:09 +0300

Faroe
33 ●1 ●2 ●7

updated 2017-01-01 12:33:36 +0300

Hello all!

When I switch on the WLAN on my Jolla C and select my router's WiFi access point, the phone seems to connect to it just fine. However, I cannot access the internet this way. The browser cannot load any pages and the Jolla Store appears stuck loading information about apps.

When I connect to another access point, such as that of my wife's 3G tablet, everything works as expected, so the problem must be caused by some kind of incompatibility between the Jolla C and my router, which is a TP-Link TL-MR6400 4G LTE box. Other wireless devices work fine with the router. I don't really know where I should start looking for a solution. What options should I try changing in the router's configuration?

I've run commands such as iw list and iw wlan0 scan dump -u in FingerTerm, but I don't understand much about wireless technologies, so the output from these commands doesn't make a lot of sense to me. I'd be happy to share my findings here, though, if needed.

One strange thing I noticed is that when I have the phone connected to the router's WiFi, I am able to ping a given IP address or host name in FingerTerm, even though at the same time the browser cannot see the internet.

EDIT: A couple of things I forgot to mention:

1. The problematic WLAN does allow me to SSH into the phone and transfer files via SFTP, but then again that might be obvious.

2. Most of the time when trying to use the router's access point, the Jolla browser only gives me an empty white page and a progress bar that doesn't advance anywhere. If I wait for a minute or so, the browser screen becomes garbled, usually filled with a geometric, quilt-like pattern. On some occasions, though, I eventually just get the "Page cannot be loaded" error message.

EDIT: Happy new year, everyone! I followed the steps outlined by @onurati:

1. The phone is indeed able to access the router's configuration page.

2. I entered the IP 91.198.174.192 into the browser, i.e. the IP of en.m.wikipedia.org. The page remained empty for a while, after which the browser displayed this message: "Server not found. en.m.wikipedia.org could not be found. Please check the name and try again." I also tried Google's IP and got similar results.

3. I can browse the web without any problems using other access points. I reserved a different IP address for the phone in the router's configuration, but that didn't seem to make a difference.

4. The router was set up to select the best channel automatically. I tried channels 6 and 10, but they didn't work.