Right so now on my mobile I am getting 109mb on 5ghz and on my laptop I am getting 30mb not I am totally confused!!!
1. How are you testing this? iPerf?
2. Sitting right next to your access point can be worse than being a long way away. If you're inside about 6" then you're inside the wavelength and you're actually getting a reflected signal, not a direct one from the access point. There are also adaptive amplifiers in the receiver and transmitter on your client device that actually reduce the level of amplification if they're being blasted by a transmitter. And they have to process that and that also reduces the communication speed.
3. The Superhub is a 2x2 802.11n device so the absolute maximum you'll see on 2.4GHz is 300Mbps half duplex which is 150Mbps theoretical maximum and if you see 80Mbps in the real world I'd be amazed. That's a real-world transfer speed of 80 megabits/8 megabytes per second. If you have any 1x1 802.11bgn devices they will run at anything down to 11Mbps half-duplex, 5.5Mbps theoretical maximum and about 2-3Mbps actual real world performance. Because of how WLAN works, it runs at the speed of the slowest device on the network so if you have a crappy 1x1 IoT light controller, ALL your 2.4GHz will run at that speed.
4. Similarly, the Superhub 3 is a 3x3 802.11ac wireless access point so unless every device you have is a 3x3 device, it will be running at a slower speed (probably 2x2) which has a theoretical maximum of 867/433Mbps and a real-world rate of about 200-300Mbps. That's 20-30 Megabytes per second transfer rate.
5. ALL speed tests are affected by anything running in the background, so unless you can guarantee that your currently selected WLAN client is only one on the WLAN at the time, then anything could be disrupting your speed tests.
6. Ensure that nothing is blocking or shielding your access point - it's not in a cupboard or hidden behind the TV? TV's and other electrical equipment are really well shielded and make great RF barriers.
If you're REALLY interested in getting to the bottom of your issues then you need to lock down devices to only use 5GHz and just test the one device at a time.
If the WLAN speed on the laptop continues to be shocking then it's probably a hardware issue (loose antenna cable possibly) and that's probably going to have to go back to Acer to get fixed.
