02-19-2018 10:43 AM
Hello, this weekend I purchased a Lenovo Tab 4 8 Plus. I love the tablet, but I seem to be having an issue with WiFi that is driving me insane.
The tablet connects to my WiFi, and internet will work for a few minutes, but shortly thereafter the internet will stop working (although the tablet will stay connected to the WiFi network). After a while I'll get the "X" symbol next to the WiFi icon. Disconnecting and reconnecting will get internet working again, but after a few minutes the same thing happens. The tablet is running Android 7.1.1 with the latest update installed.
I'm currently using the Google WiFi mesh router. I have no issues with any other device on my network. I've done restarts of the network and that seemed to help yesterday, but when I did it today it didn't fix it.
I want to get this working as I really like the tablet otherwise and don't want to return it. Has anyone else run into this and if so, are there any fixes?
02-19-2018 11:47 AM
I'm having the same issue but not that bad. Sometimes the wifi hicks up and is not working anymore. Toggle wifi off/on does solve the issue for some time. I'm running build S000037. That build did bring some annoying issues (touchscreen glitch for example) . Hope there will be an update in the near future
02-19-2018 12:01 PM
After doing some digging it seems to be an issue connecting to 5ghz WiFi networks vs. 2.4ghz. It works fine on 2.4, but not on 5.
Unfortunately, Google removed the ability to select your WiFi band on your device in Nougat. I am also running Google WiFi routers which only gives a single SSID, so I have no way of connecting to 2.4ghz specifically.
Lenovo, please roll out a fix on this ASAP!
02-19-2018 12:44 PM
02-19-2018 12:57 PM
I think you are confusing me for someone else. I haven't posted this on reddit. Also, I just got this tablet over the weekend and it immediately updated to the latest version and that's when the problems happened (I had no issues during initial setup or right after, only after updating).
It also seems to be related to this bug:
02-19-2018 01:08 PM
02-19-2018 01:17 PM
02-19-2018 05:15 PM
Ok, so I think I may have found a solution. I am not using a SIM card with the tablet, but I didn't disable the radio. However, I put the tablet into airplane mode and then manually enabled the WiFi, and since then I have been able to stay connected to my 5ghz WiFi network.
If something changes I will update, but for now this looks like it could be a fix.
02-20-2018 06:40 PM
I have the exact same issue. Have had the tablet for a month. I thought it might be something related to my router, even though I have 2 lenovo laptops and 2 moto phones that have no problem. But then I went to NYC this weekend and had the same issue on wifi on both the bus and in the hotel. So this has to be tablet problem. I keep it on airplane at home or otherwise it switches to lte and I don't notice when internet drops on wifi.