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99 posts

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# 251207 13-Jun-2019 11:48
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Hi team

 

 

 

I have recently changed to Fiber and came across to 2D and the process was great no dramas at all.

 

I'm on the 100/20 plan and have the Fritz Box 7490 which has been easy to setup and I have had no issues except for the following.

 

Every 3 or 4 days I will get home from work go to use my phone and realize I have no WIFI.

 

When looking into it my phone or any device cant see the 5ghz SSID anymore?

 

A reboot of the Fritz box solves the issue but that's a pain has anyone else come across this before and sorted it out?

 

 

 

Cheers

 

Karl


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'That VDSL Cat'
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  # 2257324 13-Jun-2019 11:54
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Likely DFS... check the logs on the fritz





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  # 2257328 13-Jun-2019 11:57
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DFS or switching to frequencies your devices aren't capable of picking up - what "devices" do you have?


 
 
 
 




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  # 2257334 13-Jun-2019 12:02
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I have a OP5T but it also happens on a S10 as well?

 

Will look at the logs tonight when I get home and will have to do a google on what DFS is :)

 

 


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  # 2257352 13-Jun-2019 12:27
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Karlosnz:

 

Hi team

 

 

 

I have recently changed to Fiber and came across to 2D and the process was great no dramas at all.

 

I'm on the 100/20 plan and have the Fritz Box 7490 which has been easy to setup and I have had no issues except for the following.

 

Every 3 or 4 days I will get home from work go to use my phone and realize I have no WIFI.

 

When looking into it my phone or any device cant see the 5ghz SSID anymore?

 

A reboot of the Fritz box solves the issue but that's a pain has anyone else come across this before and sorted it out?

 

 

 

Cheers

 

Karl

 

 

 

 

DFS is the likely suspect - Change the channel to another, also ensure you have the SSID for 2.4 and 5g to be the same, if 5g does disappear for any reason, it will failover to 2.4g. (devices if capable and it's available will connect to 5g first).

 

For more info - https://www.gowifi.co.nz/wireless-basics.html

 

Nick





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  # 2257375 13-Jun-2019 12:46
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I was interested in knowing what this was and, according to a basic Google search, DFS = Duty-free shopping!

 

In this context though, looks like it means dynamic frequency selection.

 

Dynamic Frequency Selection (DFS) is a WiFi function that enables WLANs to use 5 GHz frequencies that are generally reserved for radars.

 

https://netbeez.net/blog/dfs-channels-wifi/

 

Would that be enabled by default by 2D, or something a user would have had to turn on?


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  # 2257386 13-Jun-2019 13:24
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jonathan18:

 

I was interested in knowing what this was and, according to a basic Google search, DFS = Duty-free shopping!

 

In this context though, looks like it means dynamic frequency selection.

 

Dynamic Frequency Selection (DFS) is a WiFi function that enables WLANs to use 5 GHz frequencies that are generally reserved for radars.

 

https://netbeez.net/blog/dfs-channels-wifi/

 

Would that be enabled by default by 2D, or something a user would have had to turn on?

 

 

On by default.





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  # 2257388 13-Jun-2019 13:26
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Thanks all

 

So I just look to turn DFS off in the settings?


 
 
 
 


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  # 2257394 13-Jun-2019 13:31
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jonathan18:

 

Would that be enabled by default by 2D, or something a user would have had to turn on?

 

 

All providers highly likely have it on.

 

 

 

Given the non dfs space is so limited, it would create more overlapping.

 

We already are starting to see that issue showing up with 160mhz coming common





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  # 2257403 13-Jun-2019 13:45
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Frequency info from Ministry of Business, Innovation and Employment on Radio Spectrum Management - https://www.rsm.govt.nz/assets/Uploads/documents/b8c1468d8e/5-ghz-info-leaflet-2019-update.pdf





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  # 2257475 13-Jun-2019 16:23
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Karlosnz:

 

Thanks all

 

So I just look to turn DFS off in the settings?

 

 

just use channels outside the DFS band

 

they are posted in the PDF above


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  # 2257522 13-Jun-2019 16:55
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DFS is only useful in high density deployments where you have overlapping coverage so things will always be able to see an AP on a non DFS channel. Many devices are not certified for DFS channels or are made for a different market where they have different ones that they can use.





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  # 2259411 17-Jun-2019 12:04
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Thanks all Had a look in the logs and yes it looked like it was being turned off because of sensing radar etc. So I have changed the channels and it seems fine.


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