Frozen WiFi Problem on - r45036 (WRT1900ACSv2)

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gaz_0001
DD-WRT Novice


Joined: 02 Aug 2017
Posts: 8

PostPosted: Tue Dec 22, 2020 11:31    Post subject: Frozen WiFi Problem on - r45036 (WRT1900ACSv2) Reply with quote
Hi Forum,

Is anyone having issues on the new version r45036?

Yesterday I upgraded from an old r3xxxx version - everything went fine.

I don't have any complex config or anything, just regular access point.

My LAN seems to be without issue, and the laptop on wifi also didn't show any problems.

Our phones however, they stay connected just fine, but after a while of not using them, the WiFi becomes completely unresponsive.
If I switch WiFi off/on, they become fine again.

Seems to be they just freeze or lockup after not using them for a while.

Does anyone know what's causing this, or have any suggestions?
Maybe there is a rock solid older build that someone can suggest for me?

I have attached my Wifi settings, which I configured using the DDWRT recommended settings wiki.
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pbphoto
DD-WRT User


Joined: 29 Oct 2017
Posts: 120

PostPosted: Tue Dec 22, 2020 14:36    Post subject: Reply with quote
Try 44048. I have had issues with iPhones and Macbooks exactly as you describe since 44048. Others have as well. Let us know how it goes. g-luck.
gaz_0001
DD-WRT Novice


Joined: 02 Aug 2017
Posts: 8

PostPosted: Tue Dec 22, 2020 19:59    Post subject: Reply with quote
pbphoto wrote:
Try 44048. I have had issues with iPhones and Macbooks exactly as you describe since 44048. Others have as well. Let us know how it goes. g-luck.


Thanks for the suggestion.

Have downgraded this evening. Seems to be working fine so far.
roland90
DD-WRT User


Joined: 22 Oct 2015
Posts: 95

PostPosted: Wed Dec 23, 2020 21:49    Post subject: Reply with quote
The same at me with 44849
I'm investigating this issue.
Intertesting because I can't decide whether the phone (S10+) has an issue or the router.
Now I disabled the battery optimalization.
Maybe....
gaz_0001
DD-WRT Novice


Joined: 02 Aug 2017
Posts: 8

PostPosted: Thu Dec 24, 2020 5:14    Post subject: Reply with quote
roland90 wrote:
The same at me with 44849
I'm investigating this issue.
Intertesting because I can't decide whether the phone (S10+) has an issue or the router.
Now I disabled the battery optimalization.
Maybe....


Well mine is working fine now on the recommended firmware version.
So in my case it was related to the router firmware.
ruprect
DD-WRT Novice


Joined: 29 Sep 2016
Posts: 23

PostPosted: Mon Dec 28, 2020 6:46    Post subject: Re: Frozen WiFi Problem on - r45036 (WRT1900ACSv2) Reply with quote
gaz_0001 wrote:
Hi Forum,

Is anyone having issues on the new version r45036?


Was a dumpster fire of zombie wifi connections for me, I just updated to 45130 and we'll see how that goes.

1900ACS
raywan
DD-WRT Novice


Joined: 16 Jun 2020
Posts: 23

PostPosted: Tue Dec 29, 2020 3:15    Post subject: Reply with quote
I have the same problem today. My router is wrt32x which is uptime about 8 days. This morning, all smartphone cannot connect to WRT32x but RPi and ESP32 IoT devices are still connected to WRT32x without connection problem. (AP mode only)
Firmware: DD-WRT v3.0-r45036 std (12/18/20)
Time: 11:15:24 up 8 days, 11:05,
load average: 0.07, 0.02, 0.00
WAN IP: 0.0.0.0
gaz_0001
DD-WRT Novice


Joined: 02 Aug 2017
Posts: 8

PostPosted: Thu Jan 14, 2021 7:55    Post subject: Reply with quote
Update:

Still having issues on Firmware: DD-WRT v3.0-r44048 std (08/02/20).

Two Laptops are suffering. The connection just drops randomly, and then the laptops need restarting.

These issues only started since upgrading from r3xxx to the two r4xxx versions i mentioned.

So, is there any known rock solid version available?
Or does something need doing on the laptops?

Any suggestions?

Thanks
SurprisedItWorks
DD-WRT Guru


Joined: 04 Aug 2018
Posts: 1055
Location: Appalachian mountains, USA

PostPosted: Thu Jan 14, 2021 15:34    Post subject: Reply with quote
Set beacon interval back to the default 100. Really strange intermittent wifi problems happened to me from changing it even slightly. I saw this behavior across three different WRT1900ACSv2 routers on an April 2020 build. Apparently the drivers for our WRTblah routers don't handle nondefault BI values well at all.

While we are here, I have found that TurboQAM (in my WRT1900ACSv2) appears to do nothing useful. I have read that it only works (to radically increase connection speed) at close range, which is logical, but I can be less than 10 ft (3m) from the router and still get nothing from it. I don't think this is any part of your problem, but maybe add it to your future-tweak list once you actually get things working OK.

_________________
Five WRT1900ACSv2's on 42926, 44048.
VLANs, VAPs, NAS, client-mode travel router, OpenVPN client (AirVPN), DDNS, wireguard servers, wireguard clients (AzireVPN), two DNSCrypt DNS providers (incl Quad9) via OpenVPN/wireguard clients.
gaz_0001
DD-WRT Novice


Joined: 02 Aug 2017
Posts: 8

PostPosted: Thu Jan 14, 2021 16:06    Post subject: Reply with quote
SurprisedItWorks wrote:
Set beacon interval back to the default 100. Really strange intermittent wifi problems happened to me from changing it even slightly. I saw this behavior across three different WRT1900ACSv2 routers on an April 2020 build. Apparently the drivers for our WRTblah routers don't handle nondefault BI values well at all.

While we are here, I have found that TurboQAM (in my WRT1900ACSv2) appears to do nothing useful. I have read that it only works (to radically increase connection speed) at close range, which is logical, but I can be less than 10 ft (3m) from the router and still get nothing from it. I don't think this is any part of your problem, but maybe add it to your future-tweak list once you actually get things working OK.


Thanks for the tip.
I had my 5GHz set to 449 and 2.4GHz set to 523

I'll see how it does with them both set back to 100.
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