Wifi keeps dropping devices, but only some

busyboyie · 2020-10-11T18:21:15+00:00

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busyboyie

Hi,

Some of my devices (my wife’s HP laptop) and my Sonos One speaker, keep periodically dropping from the network. This often requires restarting the devices to get them back on to the network.

I’ve tried using some of the tools in the router (I’m no expert!) and can see that when the devices drop, they are no longer visible in the router as “connected devices”. When I try a ping test to these devices, even when connected, this shows 100% packet loss. When I look at the network log as soon as a device is dropped, it looks like the typical message that accompanies the dropping of the device is “Illegal - Dropped FORWARD packet: src=2001:0730:3400:8400:0000:0000:0000:0004 MAC=17:10:9A:5B:83:86;CM-MAC=54:67:51:d2:e2:4b;CMTS-MAC=00:17:10:9a:5b:83;CM-QOS=1.1;CM-VER=3.0;”

Please help!

pato

No need, if you have only one of the two SSIDs configured on the end device, then the devices can’t join the other SSID/frequency.

busyboyie

Thanks again!
TKIP is not enabled, the devices appear to have sufficient signal, and even if I move the devices a couple of meters from the router they still periodically drop - so not dependent on location in the house.
Was thinking about using MAC filtering to force the two bad devices onto the 2.4 network and all other devices onto the 5.0 network only???

pato

Check if only WPA2 with AES is enabled. TKIP must not be enabled.
How many bars of signal do your devices show when they drop?
Do they drop always around the same place in the building?

busyboyie

Many thanks Pato for your guidance.

I put this set up in place last night and tested it for a couple of hours, and unfortunately the devices are still dropping / getting kicked off the network.

Any additional ideas?

Thanks!

pato

Here the Giga Box manual, but the interface is essentially the same: https://www.upc.ch/content/dam/www-upc-ch/img/Support/internet/giga-connect-box/Manual_Giga%20Connect%20Box_0830_EN.pdf
See page 29 for more information.
Once you changed the SSID, you will see two different wireless in your home. Simply connect to the new name with the trouble-devices.

busyboyie

I have the Connect box. I’m guessing that renaming the 2.4 GHz SSID will be fairly staightforward, but could you briefly describe the process to separate out which devices can connect to which SSID? Thanks!

pato

Which box do you use to receive internet? UPC has two current boxes, the Connect Box and the Giga Box (besides the very old Horizon, but based on the message you don’t use that one).
The error message itself is from the WAN connection and can be ignored for this issue here.

What you can try, rename the 2.4 GHz SSID to another name, for example mywifi_2.4. Then connect the devices which drop to the (slower) 2.4 GHz SSID.