Wifi Problem in rtl8723be

[styx_97]

Hi Guys, I've been facing a wifi problem in Mint 18(cinnamon). At first, the strength was 48% although the router's in my room. So I read Jeremy31's answer https://askubuntu.com/questions/717685/ ... 904#722904 which fixed that issue. Although I had to type

Code: Select all

sudo modprobe -rv rtl8723be
sudo modprobe -v rtl8723be ant_sel=2 

every time i logged in.
But,recently, with having the improved connection strength, I can't connect to the internet at all. Any website shows the error -

This site can’t be reached
http://www.example.com’s server DNS address could not be found.
Try:
Checking the proxy, firewall and DNS configuration
DNS_PROBE_FINISHED_BAD_CONFIG

I tried using the ipv4 addresses thinking this might just be a dns issue with no luck. The internet works when it's wired.
Any help is appreciated!

[songhuijohn]

The first thing I always suggest to anyone having WIFI problems is power the router off and wait a couple of minutes and then power the router on.
In my experience router are notorious for having memory leaks and the power off / power on sequence will fix these kinds of problems.
As a normal course of usage, I suggest to everyone to do this power off / power on sequence once a month for their modem/router.

If this does not fix your problem, at least you have eliminated this as a problem.

Also, if you have in any way modified the setup of your router, you should see if resetting the router to its default settings fixes your problem.

[JeremyB]

To avoid having to type those commands after every reboot

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echo "options rtl8723be ant_sel=2 " | sudo tee /etc/modprobe.d/rtl8723be-ant.conf

See the wireless script link in my signature and post results