Thinkpad E555 LM17.2 wifi Realtek RTL8723BE connection drops

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felix31

Thinkpad E555 LM17.2 wifi Realtek RTL8723BE connection drops

Post by felix31 »

Since some days I have problems with my internet connection.
Before, both cable and wifi worked.
Now the wifi connects but it recieves some bytes and drops immediately after. From time to time the same happens now even with the cable connection. Only when I use another router in between my computer and the original router, it mostly works.

With my smartphone (android) I never have problems with the wifi connection.

I already tried many solutions proposed somewhere, e.g.
https://help.ubuntu.com/community/Wi...eShootingGuide
http://forum.linuxmint.com/viewtopic.php?f=53&p=1053678
http://www.dedoimedo.com/computers/u...y-realtek.html

nothing worked.

Code: Select all

 ~ $ sudo /usr/lib/linuxmint/mintWifi/mintWifi.py
-------------------------
* I. scanning WIFI PCI devices...
  -- Realtek Semiconductor Co., Ltd. RTL8723BE PCIe Wireless Network Adapter
      ==> PCI ID = 10ec:b723
-------------------------
* II. querying ndiswrapper...
-------------------------
* III. querying iwconfig...
eth0      no wireless extensions.

wlan0     IEEE 802.11bgn  ESSID:"Oekomeile"  
          Mode:Managed  Frequency:2.417 GHz  Access Point: 24:65:11:19:34:C6   
          Bit Rate=150 Mb/s   Tx-Power=20 dBm   
          Retry short limit:7   RTS thr=2347 B   Fragment thr:off
          Encryption key:off
          Power Management:off
          Link Quality=70/70  Signal level=30 dBm  
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:0   Missed beacon:0

lo        no wireless extensions.

-------------------------
* IV. querying ifconfig...
eth0      Link encap:Ethernet  Hardware Adresse 68:f7:28:04:eb:ce  
          inet6-Adresse: fe80::6af7:28ff:fe04:ebce/64 Gültigkeitsbereich:Verbindung
          UP BROADCAST MULTICAST  MTU:1500  Metrik:1
          RX-Pakete:3892 Fehler:0 Verloren:0 Überläufe:0 Fenster:0
          TX-Pakete:3500 Fehler:0 Verloren:47 Überläufe:0 Träger:0
          Kollisionen:0 Sendewarteschlangenlänge:1000 
          RX-Bytes:2619871 (2.6 MB)  TX-Bytes:553930 (553.9 KB)

lo        Link encap:Lokale Schleife  
          inet Adresse:127.0.0.1  Maske:255.0.0.0
          inet6-Adresse: ::1/128 Gültigkeitsbereich:Maschine
          UP LOOPBACK RUNNING  MTU:65536  Metrik:1
          RX-Pakete:147 Fehler:0 Verloren:0 Überläufe:0 Fenster:0
          TX-Pakete:147 Fehler:0 Verloren:0 Überläufe:0 Träger:0
          Kollisionen:0 Sendewarteschlangenlänge:0 
          RX-Bytes:10369 (10.3 KB)  TX-Bytes:10369 (10.3 KB)

wlan0     Link encap:Ethernet  Hardware Adresse c0:38:96:6b:39:f3  
          inet Adresse:192.168.178.82  Bcast:192.168.178.255  Maske:255.255.255.0
          inet6-Adresse: fe80::c238:96ff:fe6b:39f3/64 Gültigkeitsbereich:Verbindung
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metrik:1
          RX-Pakete:85 Fehler:0 Verloren:0 Überläufe:0 Fenster:0
          TX-Pakete:386 Fehler:0 Verloren:0 Überläufe:0 Träger:0
          Kollisionen:0 Sendewarteschlangenlänge:1000 
          RX-Bytes:17818 (17.8 KB)  TX-Bytes:54481 (54.4 KB)

-------------------------
* V. querying DHCP...
RTNETLINK answers: File exists
-------------------------
* VI. querying nslookup google.com...
Server:		192.168.178.1
Address:	192.168.178.1#53

Non-authoritative answer:
Name:	google.com
Address: 87.79.22.94
Name:	google.com
Address: 87.79.22.99
Name:	google.com
Address: 87.79.22.88
Name:	google.com
Address: 87.79.22.113
Name:	google.com
Address: 87.79.22.109
Name:	google.com
Address: 87.79.22.119
Name:	google.com
Address: 87.79.22.89
Name:	google.com
Address: 87.79.22.84
Name:	google.com
Address: 87.79.22.98
Name:	google.com
Address: 87.79.22.123
Name:	google.com
Address: 87.79.22.104
Name:	google.com
Address: 87.79.22.103
Name:	google.com
Address: 87.79.22.108
Name:	google.com
Address: 87.79.22.114
Name:	google.com
Address: 87.79.22.93
Name:	google.com
Address: 87.79.22.118
Last edited by LockBot on Wed Dec 28, 2022 7:16 am, edited 2 times in total.
Reason: Topic automatically closed 6 months after creation. New replies are no longer allowed.
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Re: Thinkpad E555 LM17.2 wifi Realtek RTL8723 connection dro

Post by Pjotr »

You should be able to fix it like this:
https://sites.google.com/site/easylinux ... BE-chipset
(item 3, left column)
Tip: 10 things to do after installing Linux Mint 21.3 Virginia
Keep your Linux Mint healthy: Avoid these 10 fatal mistakes
Twitter: twitter.com/easylinuxtips
All in all, horse sense simply makes sense.
felix31

Re: Thinkpad E555 LM17.2 wifi Realtek RTL8723 connection dro

Post by felix31 »

I tried this already several times. Did not change anything
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