Alees101
1 Copper

Inspirion 15 5000, Wireless AC-3160, Fluctuating signal and extremely slow

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I very recently purchased the Dell Inspirion 15 5000 series laptop with the Intel (R) Dual Band Wireless AC-3160 however i have noticed that the connection to the Wi-Fi in my home when using wireless is extremely slow and the signal bar fluctuates from 1 bar to 5 and often just disconnects. The wireless adapter works fine when i am right next to the router however in my bedroom it is extremely slow even when there are a few bars of connection and so i am forced to use an Ethernet  cable to connect. I feel that this is not a problem with the router or my Wi-Fi in my home because the laptop i used prior to buying this one worked perfectly and other laptops in the house also get full bars of connection and high speeds in my room however my laptop does not.  I have tried updating drivers which say they are already up to date, i have run the dell troubleshoot which has made no difference, and i have tried other troubleshoots in the control panel which said it found a problem and said it was fixed however there has been absolutely no change so i am beginning to think that the wireless card may be faulty. Any help would be immensely appreciated so thank you in advance.

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jsoles
1 Copper

RE: Dell Inspirion 15 5000 series Intel (R) Dual Band Wireless AC-3160 Fluctuating signal and extremely slow

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the WLAN chip has two pop on wired connectors. These connections are not secure and come loose very easily. It resembles the connection for a 9 volt battery connection except these are very loose.

Could be soldered but the chip is easily damaged.. 

Good luck.

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nsolovan
1 Copper

RE: Dell Inspirion 15 5000 series Intel (R) Dual Band Wireless AC-3160 Fluctuating signal and extremely slow

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Hi,

same problem here, with the same Dell Inspiron 5547 using Intel(R) Dual Band Wireless-AC 3160.

I've tested the wi-fi connection using an old Latidude D630 and other 2 laptops. 

I fell disappointed!

CR86
1 Copper

RE: Dell Inspirion 15 5000 series Intel (R) Dual Band Wireless AC-3160 Fluctuating signal and extremely slow

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Same problem here, same Notebook. I believe it is due to the Intel WiFi card or the antenna. If I put my notebook directly besides the router, I get around 20Mbit/s. In the next room I am only getting like 400 kbit/s.


Those dual cards WiFi/Bluetooth are not really a great thing.

HoldenR
1 Copper

RE: Dell Inspirion 15 5000 series Intel (R) Dual Band Wireless AC-3160 Fluctuating signal and extremely slow

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I purchased a Dell 5547 with this WiFi card two weeks ago.  My router puts out 30 Mb/s (2.4 GHz, N) but if I am more than 5 feet away I get half that or less.  Two other computers in the house will get 30 Mb up to 30 feet away so either I have a bad card/antenna or that is the way every one of this model will work.  Does any one know if this is just the flaw of a 3160?  Is there a replacement WiFi card without this problem?  

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nsolovan
1 Copper

RE: Dell Inspirion 15 5000 series Intel (R) Dual Band Wireless AC-3160 Fluctuating signal and extremely slow

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From my point of view the problem is the driver.

As I said in a previous message I have a few more laptops, 2 HP, and one Dell Latitude D630 (yes, it's old, but the wifi works great!). The wifi signal from the router, in my room is -60 dbm (which is good), and the all the links between the router and the laptops (except the new one) are on 72 mpbs.

Last night I installed a dual band AP in my room just for this 500 pound laptop (sounds weird right?).

I configured both, the router and the 3160 to run on 5.2 Ghz, but my laptop disconnects even more often than before. I changed it back to 2.4 Ghz, and now, the link between the laptop and the AP is 72 mbps.

I also tried the updated driver from intel: http://www.intel.com/support/wireless/wlan/sb/CS-034535.htm

but didn't helped at all, and I had to reinstall my Windows, just to be sure. Now I'm using the driver  version 16.10.0.5.

I already did too many things to fix a "new laptop", I'm disappointed and I guess I'm going to call Dell and ask about a replacement.

tripfish
1 Copper

RE: Dell Inspirion 15 5000 series Intel (R) Dual Band Wireless AC-3160 Fluctuating signal and extremely slow

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Hi,


I've noticed the same issue with my 5547.

My AP with wifi n standard is 2-3 meters away. The status shows me a 150 Mbit connection, but the max speed is around 30-40 Mbit.

With my old acer and with an USB wifi stick there are no problems.

Is it possible to replace the wifi modul? Or is the BIOS whitelist limited?

Greets

tripfish

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atark
1 Copper

RE: Dell Inspirion 15 5000 series Intel (R) Dual Band Wireless AC-3160 Fluctuating signal and extremely slow

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Hi,

I am having this very same problem with my brand new 5547. I get maximum bandwidth only when I am in the same room. But in my bedroom (about 30 ft away), the speed drops to 1/10 of the max. speed even though 2-3 signal bars show. As others have already noted, the wi-fi seems to work fine with my old Dell n5110.

Now, at first I was not even able to connect to my router. It was only after I upgraded the drivers to 17.0.5.8 that I have been able to connect in my bedroom but the low speed problem continues. The Dell tech support seems to be cluesless and has offered to send someone to replace the card. But since all they can do is to replace the card with the same model, I don't think it is going to solve the problem.  I do believe the problem with the drivers.

I don't know what to do.


Another thing to note. I have tried using an USB adapter (TP-LINK 150 Mbps TL-WN721N Wireless N) but still the same problem persists.

Anyone have any ideas how to solve this problem.

Best regards

atark.

HoldenR
1 Copper

RE: Dell Inspirion 15 5000 series Intel (R) Dual Band Wireless AC-3160 Fluctuating signal and extremely slow

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I have done some investigation and the problem may be related to the fact that the 3160AC is a single stream (1x1) version of the Intel networking card.  In that family they have a 7260AC that is dual band and 2x2 stream.  So for an N type router it should double the throughput.  Working through Dell I found that although all 5547s ship with the 3160 WiFi chip they do have a Dell PN for the 7260 in the compatible form factor.  The Dell PN for that part is KTTYN.  The description is "Intel 7260NGW" which should be correct per my investigation.  It has the same driver as the 3160.  I am not sure if this will solve the problem but I bought one for $35 (including tax and shipping) and will find out next week when it arrives.  I will update the forum with the results.  

Since it is a Dell part it does not affect the warranty or support.  I confirmed that with Dell support.   

mike_tx
1 Copper

RE: Dell Inspirion 15 5000 series Intel (R) Dual Band Wireless AC-3160 Fluctuating signal and extremely slow

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I'm very curious about this also.  I bought my daughter the same laptop 1 month ago and she is complaining that it loses the Wi-Fi connection repeatedly and has to manually set it back up.   Our home has extremely strong Wi-Fi (I have an Enterprise/Commercial grade  Wi-Fi 802.11ac system....it's part of the business I'm in), so it is absolutely not the Wi-Fi network, but the laptop or Intel Wi-Fi inside it.   Dell needs to figure this out quick (ie this week) or I'll have no choice but to return the laptop.

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anaghidelli
1 Copper

RE: Dell Inspirion 15 5000 series Intel (R) Dual Band Wireless AC-3160 Fluctuating signal and extremely slow

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I have the 14' one (5447-6250) and still get the same problem. Tried updating drivers and nothing. I wonder if Dell is going to do something about this. I think it just need a fix, they would't recall every single unit.

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