I believe I have been sold a tablet (Acer, made in 2019) with a defective wifi antenna but would appreciate some experts confirming what I think so I would appreciate some input on this.
My home router has the 5ghz band disabled (Plusnet router with known issues causing conflicts and slowdowns). All my smartphones work well on the 2.4 band as far as downloading/streaming and youtube etc. I bought a 2nd hand tablet off ebay but I noticed lots of buffering and on testing the speeds I noticed painfully slow downloads but often acceptable upload speeds. I have 38 mbps download and 10 upload and on the 2.4 band I was getting sometimes as slow as 0.18 download. About 60% of the time the upload speeds were slightly better than the download speeds. After lots of head scratching and troubleshooting I realised I should try the 5ghz band. Here is a shot of 10 tests, the first 5 on the 5 band and the last 5 on the 2.4.
On the 5 band the device is normal but on the 2.4 its often useless for video. The ebay sellar is not recognising that these speeds make no sense. For further clarity here are pictures of the speeds I was getting on an aging smartphone:
and the crazy slow speeds on the tablet (the one fast speed is when I was stood next to the router):
As a test and to exclude the my Plusnet router, I have used my smartphone (LG G6) as a router instead by using hotspot/tethering mode and tested 2 other phones and then tablet. This is again in 2.4 band.So.....
The Tablet next to the hotspot/tethering mode phone = 55.1 download and 9.55 upload - the other end of the house this drops to a pitiful 0.67 and 2.22!
Another old smartphone = 53.5 download and 4.7 upload - the other end of the house this drops to a reasonable 34.4 and 4.19
A much lower spec smartphone (with Snapdragon 425 chip, possibly similar spec CPU to the tablet): = 44.4 download and 15.4 upload then drops only to 44.4 & 15.4
I know how I interpret those figures, but maybe I'm wrong!
How can it make sense in the last picture for about 60% of the time that the uploads were faster than the downloads?
How can the differences in speed make any sense, apart from it being faulty in band 2.4 The other phones are getting over 50 times the speed.
As I understand it, devices dynamically on their own change from one band to another as you move about the house, so if the tablet switches back to the lower band its then going to be painfully slow, with little I could do to resolve it.
If anyone can confirm my thoughts I'd be very grateful.
My home router has the 5ghz band disabled (Plusnet router with known issues causing conflicts and slowdowns). All my smartphones work well on the 2.4 band as far as downloading/streaming and youtube etc. I bought a 2nd hand tablet off ebay but I noticed lots of buffering and on testing the speeds I noticed painfully slow downloads but often acceptable upload speeds. I have 38 mbps download and 10 upload and on the 2.4 band I was getting sometimes as slow as 0.18 download. About 60% of the time the upload speeds were slightly better than the download speeds. After lots of head scratching and troubleshooting I realised I should try the 5ghz band. Here is a shot of 10 tests, the first 5 on the 5 band and the last 5 on the 2.4.
https://photos.app.******/XXt2nnfBiwYaZ8MAA
On the 5 band the device is normal but on the 2.4 its often useless for video. The ebay sellar is not recognising that these speeds make no sense. For further clarity here are pictures of the speeds I was getting on an aging smartphone:
https://photos.app.******/QEXu4nm4xu5cCVETA
and the crazy slow speeds on the tablet (the one fast speed is when I was stood next to the router):
https://photos.app.******/L36sx9XdH4VvDtJx5
As a test and to exclude the my Plusnet router, I have used my smartphone (LG G6) as a router instead by using hotspot/tethering mode and tested 2 other phones and then tablet. This is again in 2.4 band.So.....
The Tablet next to the hotspot/tethering mode phone = 55.1 download and 9.55 upload - the other end of the house this drops to a pitiful 0.67 and 2.22!
Another old smartphone = 53.5 download and 4.7 upload - the other end of the house this drops to a reasonable 34.4 and 4.19
A much lower spec smartphone (with Snapdragon 425 chip, possibly similar spec CPU to the tablet): = 44.4 download and 15.4 upload then drops only to 44.4 & 15.4
I know how I interpret those figures, but maybe I'm wrong!
How can it make sense in the last picture for about 60% of the time that the uploads were faster than the downloads?
How can the differences in speed make any sense, apart from it being faulty in band 2.4 The other phones are getting over 50 times the speed.
As I understand it, devices dynamically on their own change from one band to another as you move about the house, so if the tablet switches back to the lower band its then going to be painfully slow, with little I could do to resolve it.
If anyone can confirm my thoughts I'd be very grateful.