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inspiron 11 3148 wifi ac????
as mentioned in the manual of inspiron 3148, it supports both ac & b/g/n wifi.
but it does not show in dell support app.
even it does not detect the 5 ghz wifi network...
ejn63
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September 10th, 2016 13:00
The standard-equipment wireless card is a b/g/n DW1704 that supports only 2.4 GHz operation.
Some models had options for (mostly Intel) upgrade cards for added charge at purchase -- and most of those are AC cards that operate as dual band.
To determine which card you have, use the service tag and support.dell.com (look up the original configuration) -- or, open the device manager and check the system's wireless adapter model.
If it's a DW1704 card it's not AC or 5 GHz capable.
jviera89
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September 10th, 2016 13:00
What wireless router/access point are you trying to connect to?
Can you confirm that you see the 5ghz network on another device such as your cellphone?