topic Re: Sound Bar Q990C WiFi Disconnects in Audio & Video

Sound Bar Q990C WiFi Disconnects

IanCardiff — Fri, 19 Apr 2024 18:34:22 GMT

I have recently replaced my Samsung HW-Q90R with a Samsung HW-Q990C. One of the main reasons for replacing the older item were the problems with WiFi which continually disconnected, unfortunately I have the same problem having spent over £1000 on the new system. I have not contacted Samsung as there is little point, they either do not answer or suggest there is a problem with my Wifi signal at home. There is nothing wrong with my WiFi I have many devices connected to WiF and they do not drop out at all. There is no doubt in my mind that this is a Samsung problem, not only have I had two Samsung systems with the same problem but reading on here, there are many others suffering the same problem. I do hope some one from Samsung reads this and comes up with some way of solving the issue.

Re: Sound Bar Q990C WiFi Disconnects

nyiroe — Sat, 20 Apr 2024 07:59:43 GMT

Hello,

TLDR: Q990C seems not handling WPA3 well. Try WPA2 only.

Details: Q990C keeped disconnecting. I tracked down that it occured when my router restarted. All devices were connecting back, except Q990C. I had to reset and reconnect to SmartThings every time.

There a lots of forums there related to this issue. I read many hints, including let it connect only in 2,4 GHz / 5 GHz, set up it as SmartThings hub (bottom of the control), use only lower channels etc.

Finally I downgraded my WiFi to WPA2 only (not WPA2/3 mixed, because in this case it uses WPA3). Since then it seems stable.

I do not understand why Samsung won’t fix this in a brand new device, otherwise it is a great bar. But I have doubts next one will be Samsung if they won’t fix it.

Re: Sound Bar Q990C WiFi Disconnects

IanCardiff — Sat, 20 Apr 2024 08:11:54 GMT

Thanks for this but my WiFi is already WPA2 so unfortunately that doesn't seem to be the answer in my case. As you say there are lots of different things to try but it is absolutely disgusting that Samsung seem to be doing nothing about a problem that lots of us are having. I'll keep trying all the different suggestions though.

Re: Sound Bar Q990C WiFi Disconnects

nyiroe — Sat, 20 Apr 2024 08:48:03 GMT

Please share your circumstances.

Which vendor of your router?
Are you using any mesh?
WPA2 only then (are you sure it is not mixed?), but 2,4 / 5 GHz? Have you tried both?
I guess it can connect, how long until it drops? Do you need fully reset the soundbar then or restart / unplug?
For testing have you tried placing your router next to the unit to completely eliminate possibility of interference?

Re: Sound Bar Q990C WiFi Disconnects

IanCardiff — Sat, 20 Apr 2024 09:03:41 GMT

My internet is via Virgin Hub 3, although I do not use the wireless part of this, instead all my wireless is on a Deco M5 Mesh. I am sure I am using WPA2 ONLY. I have tried 2.4 and 5GHz and have the same problem using either of them. It usually drops overnight, I usually have to do a complete reset, removing the speaker from the Samsung App and disconnecting the mains supply to the speaker, reconnecting then adding the speaker again. I have tried moving the Deco unit closer to the speaker but I still have the same problem.

Re: Sound Bar Q990C WiFi Disconnects

nyiroe — Sun, 21 Apr 2024 06:43:35 GMT

Here are some more topics I know about the issue, you may find some other hints, which you may haven't tried and may work:

https://eu.community.samsung.com/t5/audio-video/q990c-smartthings-connection-issues/td-p/8326720

https://www.reddit.com/r/Soundbars/comments/18elth7/samsung_q990c_shows_offline_on_smartthings/

Re: Sound Bar Q990C WiFi Disconnects

IanCardiff — Sat, 27 Apr 2024 09:02:27 GMT

I have tried all the various 'solutions' to this problem but none of them work all the time. The unit connects and stays connected for a couple of days, sometimes less. It really is time Samsung sorted this out.

Re: Sound Bar Q990C WiFi Disconnects

Ibivfsbana — Mon, 27 May 2024 22:16:41 GMT

In my case a I found there is an obvious fault with the 5ghz connectivity on this soundbar. Difficult to know whether it's a software or hardware issue.

I spent days trying to get the soundbar to connect and be reliably recognised by my S90C tv.

However, I found that it is stable on 5ghz when using low 5ghz channel numbers. I encountered frequent disconnects whenever my WiFi was using the higher 5ghz channel numbers.

If you can, make sure your 5ghz WiFi is using the lower channels. I've not had any issues since doing this.

The one downside is if you have a router that automatically changes WiFi channel to reduce channel interface (such as Virgin's Smart One WiFi feature) , it will only be a matter of time before the soundbar goes offline and wont connect as it doesn't work well with high 5ghz channels.

Hope this helps!

Betreff: Sound Bar Q990C WiFi Disconnects

IanCardiff — Mon, 27 May 2024 07:07:26 GMT

Thank you for yet another suggestion to this problem. I am unable to change the channels on WIFI router so unfortunately this isn't a solution for me. I have once again contacted Samsung who quite honestly don't seem to understand the problem, they seem to think that the unit disconnection from Smart Things is the problem whereas the actual problem is it keeps dropping off WiFi and of course it then drops off Smart things. Apparently they have passed the problem on to a department that deals with Smart Things problems, I have yet to hear anything from them of course. Why on earth there isn't an ethernet connection on the unit like there is on their televisions ? After all the two units are bound to be next to each other and if you have ethernet on one you may as well have it on the other.

Re: Sound Bar Q990C WiFi Disconnects

IanCardiff — Sun, 02 Jun 2024 08:42:20 GMT

The solution from Ibivfsbana seems to work! I have managed to connect my Soundbar to my Virgin hubs WiFi . This hub lets me chose which channel I use and upon selecting a lower number channel on the 5ghz band, the Sound bar has stayed connected for 5 days, the longest it has ever stayed connected. This is despite the Virgin router being a fair way from the Soundbar.

Re: Sound Bar Q990C WiFi Disconnects

Ibivfsbana — Tue, 04 Jun 2024 20:51:38 GMT

Great to hear. 👍

Re: Sound Bar Q990C WiFi Disconnects

Strausere — Mon, 15 Jul 2024 20:06:59 GMT

What is the solution? I'm using a Comcast WiFi router+modem unit. The soundbar constantly drops SmartThings connection (WiFi), while my other Samsung devices on the SmartThings app do not have this issue. I cannot choose my WiFi channels

Re: Sound Bar Q990C WiFi Disconnects

IanCardiff — Mon, 15 Jul 2024 20:42:51 GMT

The only solution I found is to use lower channels on your WiFi. I could only do this by using another WiFi unit that I could change channels on which is networked to everything else. A cumbersome solution but the only one I could get to work.

Re: Sound Bar Q990C WiFi Disconnects

hackerspy — Thu, 15 Aug 2024 11:33:50 GMT

Thanks for your comment. That was the issue with Q700C (2023) !!!

By setting channel to 140 for 5Ghz it instantly disconnected the soundbar. Then I set it to 116 and it reconnected automatically.
It seems that by having channel to auto was the source of having soundbar to get disconnected and never reconnecting back without going to the app and doing the set-up wizard again.

Re: Sound Bar Q990C WiFi Disconnects

kvpargi — Tue, 03 Sep 2024 08:47:54 GMT

I am facing same issue in Q800C-XL as well.

Re: Sound Bar Q990C WiFi Disconnects

IanCardiff — Tue, 03 Sep 2024 09:16:18 GMT

Have you tried using a lower channel on your WiFi?

Re: Sound Bar Q990C WiFi Disconnects

kvpargi — Tue, 03 Sep 2024 09:37:18 GMT

I have 2.4G WPA2. WiFi Settings. And Channel is 1.

Re: Sound Bar Q990C WiFi Disconnects

IanCardiff — Tue, 03 Sep 2024 09:42:07 GMT

People seem to have had more success on a low channel on 5GHZ vWiFi

Betreff: Sound Bar Q990C WiFi Disconnects

DarkSilhouette — Thu, 26 Sep 2024 18:26:37 GMT

Same problem. And in South Africa, going into a physical store for help is useless too.

Betreff: Sound Bar Q990C WiFi Disconnects

Pa-no — Thu, 14 Nov 2024 22:04:26 GMT

Ive the same problem on my Q990C. The problem are the so-called DFS wifi channels, which are those from channel 52 and onwards. These channels are less reliable per default as they are also used for airports, weather stations etc, however, blocking them is too rigid in my opinion.