I've been facing this problem for a long time. The signal is so low that id doesn't work if I keep my phone away for like 10 metres. Signal is not even full, if I just keep my phone less that 1 metre. Is there any solution for this or do I have to install OS? Does installing OS from the scratch helps? I tried this guide two times, but it doesn't work, it only increases the strength by like 2-3%. I have fibre net in other room but it doesn't even catch the signal, so that's the deal.
Here is the specs that I get by keeping my phone as close as possible:
lo no wireless extensions. wlp3s0 IEEE 802.11 ESSID:"myphone" Mode:Managed Frequency:2.437 GHz Access Point: 20:82:C0:6B:19:9A Bit Rate=7.2 Mb/s Tx-Power=20 dBm Retry short limit:7 RTS thr:off Fragment thr:off Power Management:on Link Quality=20/70 Signal level=-90 dBm Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0 Tx excessive retries:0 Invalid misc:80 Missed beacon:0 enp2s0 no wireless extensions.
Edit: Some more details:
description: Ethernet interface product: RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller vendor: Realtek Semiconductor Co., Ltd. description: Wireless interface product: Wireless 3160 vendor: Intel Corporation Network controller: Intel Corporation Wireless 3160 (rev 93)`