Released 2016, April 159g, 8.1mm thickness Android OS, v6.0.1 16GB storage, microSD card slot

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Why my wifi network speed is slow on Samsung Galaxy J5?

My samsung galaxy J5 has a problem with wifi. My connection is 30 Mbps. But i am getting only 4 Mbps on the device(speedtested). All other wireless devices are working fine on 2.4ghz but only the J5 has this problem. I wiped cache partition and also reset the device couple of times. I have tried changing router channels and resetting​ the router also. My router is tplink archer c60 ac 1350Mbps dual band. The J5 only supports 2.4 ghz band.

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I also have the same problem with my tp-link archer C7. I too can only reach 4 Mbps with my J5 (2016). I don't know how to solve this problem, so I have installed my old router dlink dir-655 again. With that router I reach 37 Mbps. I have a 100/10 Mbps connection.

Could it be a tp-link archer problem? Anyway, I will use my tp-link archer C7 later, when I buy a new smartphone which will be an ac-smartphone.

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I think the problem is with J5. I get full speed if i turn on flight/airplane mode on. So it's definitely a phone issue.


You are probably right. I used my old Samsung Galaxy S3 with the tp-link archer C7 a couple of days ago. No problems at all. Download at 33 Mbps! Thanks for the info about flight/airplane mode. I will try that.


Yeah but using airplane mode is not a solution. So this doesn't solve the problem.


You're right. It doesn't. Never found a solution for the J5(2016). Now I have a Samsung s7 edge. What a difference! On 2.4 GHz download at 95 Mbit/s. On 5 GHz download at 118 Mbit/s. Works great with my Archer c7. Recommend you to buy an ac phone instead of the J5(2016).


The only "solution" to the slow wifi on J5(2016) was to change router. My J5(2016) hit 37 Mbit/s with the Dlink DIR-655 as I stated last year. If any of you guys find a real solution out there, please post it here! Personally I think it is a hardware component problem in the J5(2016). It is a budget smartphone.


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