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Lenovo PhonesP2 [P2a42] Smartphones
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8 Posts

03-18-2018

Bulgaria

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Lenovo P2 cannot see 5GHz Wi-Fi networks

2018-03-18, 3:31 AM

Hello.

 

Lately my Lenovo cannot see my 5GHz network. I tried changing so many settings of the router 5Ghz Wi-Fi to test whether any of them will make a change for the Lenovo P2 to see but no joy. I also did twice a Factory Data Reset from the Settings Menu of the Lenovo - did not help.

 

All my other devices can see the 5GHz network and join.

 

It is interesting that the Lenovo P2 can start a 5GHz Hotspot which works fine but cannot see my 5GHz network. I also tried entering manually the SSID and hoping it would join but not.

 

Please help.

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10 Posts

08-20-2017

India

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Re: Lenovo P2 cannot see 5GHz Wi-Fi networks

2018-03-18, 5:23 AM

Hi, i also faced the same.

 

If we go bit technical 11n 5Ghz and 11a 5Ghz working, if we search for 11ac it doesn't detect it.

 

Seems the software/hardware  support not available.

 

Could you confirm?

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8 Posts

03-18-2018

Bulgaria

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Re: Lenovo P2 cannot see 5GHz Wi-Fi networks

2018-03-18, 7:01 AM

Thanks so much for the tip.

 

I started messing with the wireless standards and finally got it working again on standard "Mixed" which corresponds to N and G.

 

Further I need a software to determine for sure whether it is N or G so that I know which of the standards is working.

 

Sadly the AC/N does not work. Thanks

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10 Posts

08-20-2017

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Re: Lenovo P2 cannot see 5GHz Wi-Fi networks

2018-03-18, 9:26 AM

11n 5GHz should be working.

 

Use WiFiAnanlyzer for this purpose.

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8 Posts

03-18-2018

Bulgaria

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  • Message 5 of 11

Re: Lenovo P2 cannot see 5GHz Wi-Fi networks

2018-03-18, 14:26 PM

Thanks for the tip! I was already using WiFi analyzer before you suggested. It does not identify a single definited protocol for the Wi Fi networks it detects, it lists possibilities, for example for this network that I have selected "mixed mode" it says "g, n" but I don't know which one, may be it's switching them.

 

Is N the best (fastest,newest) standard which Lenovo P2 supports?

 

Thanks

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8 Posts

03-18-2018

Bulgaria

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  • Message 6 of 11

Re: Lenovo P2 cannot see 5GHz Wi-Fi networks

2018-03-18, 15:06 PM

Problems continue.

 

If I specifically N-only, I cannot see the Wi Fi network.

 

To see it, I need to switch back the 5Ghz to Mixed mode. 

 

The signal that makes it possible for Lenovo P2 to see must be A or G ?

 

Please advise

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10 Posts

08-20-2017

India

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  • Message 7 of 11

Re: Lenovo P2 cannot see 5GHz Wi-Fi networks

2018-03-18, 15:09 PM

As per wifi standard 802.11ac standard available in commercial market.

 

802.11ac wave 1

802.11ac wave  2

 

802.11ac wave 2 supperts high speed data and MiMo and beamforming this can achieve 1.3Gbps easily. (Higher rates also availavav based on the hardware)

 

802.11ac wave 1 is early stage of 802.11ac standard.

 

As per our device hardware according to this post, our device hardware supports 802.11ac.

 

I have linked the hardware device specification

 

Doubting 802.11ac wave 2 on Lenovo p2!

 

In terms of fast (upload/download speed) theoretically the bandwidth matters. So in  5Ghz band 802.11a (5Ghz) > 802.11n (5Ghz) > 802.11n (2.4Ghz) > 802.11g (2.4Ghz).

 

Hope this helps.

Refer wiki for more info.

 

 

 

 

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8 Posts

03-18-2018

Bulgaria

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  • Message 8 of 11

Re: Lenovo P2 cannot see 5GHz Wi-Fi networks

2018-03-18, 15:15 PM

Why if the Lenovo P2 supports a standard in the specs, it cannot see a 5Ghz Wifi Network if the standard is explicitly set in the router config (see attached picture on my last post). 

 

Ideas?

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8 Posts

03-18-2018

Bulgaria

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  • Message 9 of 11

Re: Lenovo P2 cannot see 5GHz Wi-Fi networks

2018-03-18, 15:27 PM
How can I find out whether my Lenovo P2 has

 WCN3680B: or  WCN3660B:

?
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10 Posts

08-20-2017

India

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  • Message 10 of 11

Re: Lenovo P2 cannot see 5GHz Wi-Fi networks

2018-03-19, 4:12 AM

Check this in my previous post.

 

As per our device hardware according to this post, our device hardware supports 802.11ac.

 

 

> Lenovo P2a42 can support 802.11ac/a/b/g/n, (w/ WCN3680B), 2.4GHz& 5GHz.



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