[SOLVED] Slow and randomly not working wifi connection

[fermmm]

Hi

I bought a new laptop Lenovo V330-15IKB and installed mint 19, everything worked fine except for the wifi connection, If I boot with windows 10 there are no problems at all.
With mint, websites don't load 50% of the times throwing a ERR_NAME_NOT_RESOLVED error, If I press F5 multiple times it loads. Also when the pages load sometines it takes a lot of time and in the bottom it says "resolving host..." for a minimum of 10 seconds, after that it works fast.
This was happening less frequently some days ago but now I cannot use the wifi because it became much worst.
If I connect the ethernet cable it works fine.

In my desktop computer I started having the same problem after upgrading from mint 18 to mint 19 but not very fraquently. Is connected to the ethernet cable so I think that is probably a different problem.

Thanks.

[kc1di]

Please go to a terminal and type this command and post the results here.

Code: Select all

inxi -Nn

[fermmm]

Code: Select all

fer@fernando-notebook:~$ inxi -Nn
Network:   Card-1: Intel Dual Band Wireless-AC 3165 Plus Bluetooth
           driver: iwlwifi
           IF: wlp2s0 state: up mac: 34:41:5d:ac:7b:3c
           Card-2: Realtek RTL8111/8168/8411 PCIE Gigabit Ethernet Controller
           driver: r8169
           IF: enp3s0 state: down mac: 54:ee:75:f6:e6:e0

I guess there is a problem with something related to the dns resolution, because after the dns is resolved the connection works fast.

[fermmm]

This post solved my issue:
https://askubuntu.com/questions/1029723 ... g-to-18-04

[Moem]

Thanks for posting your solution! Now please mark the thread as solved. Thanks!