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My wifi signal is extremely weak since I reinstalled my operating system. I need to stay very close to the router in order to make it work.

I have Ubuntu 22.04.1 LTS, an Intel 7260 wireless adapter, kernel 5.15.0-52-generic, firmware version: 17.3216344376.0 7260-17.ucode.

For all the details of my setup, here is the result of the wireless info script found here: https://pastebin.ubuntu.com/p/r8tJ55GqMY/

I tried some solutions found here, but so far, none of them worked. I tried to modify iwlwifi configuration (11n_disable=1, power_save=0, bt_coex_active=0, swcrypto=1) as described here. I also tried to blacklist modules as described here.

It seems that a lot of people have the same problem, and sitll I have not found a definitive solution.

EDIT: My computer cannot connect at all to networks with more modern routers, even if signal strength is strong. So I can see the network and its signal strength but can't connect. It seems that I can only connect to older router models and with low distance.

Restarting network manager by sudo systemctl restart NetworkManager did not solve my problem either.

smoortema
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    Is your router set to auto channel select (bad) or a fixed channel (good)? – chili555 Nov 06 '22 at 01:00
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    Does running sudo systemctl restart NetworkManager improve your wifi signal? – stumblebee Nov 06 '22 at 15:51
  • @chili555 how can I check that? – smoortema Nov 07 '22 at 18:15
  • @stumblebee unfortunately no. I will update my post accordingly – smoortema Nov 07 '22 at 18:16
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    Do you have administrative access to the router? Check there. – chili555 Nov 07 '22 at 18:59
  • @chili555 I checked and it is automatic. However, I do not think that this is the problem, as my laptop used to work with these routers before. Also, I cannot change the settings of the router everywhere where I use my laptop, so I need to find a way to make it work whhen the router is set to auto. All other laptops can manage, so I guess mine could too. – smoortema Jan 03 '23 at 10:36

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