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The Graveyard - Products No Longer Supported => Routers / COVR => DIR-655 => Topic started by: Tanquen on November 12, 2017, 05:56:23 PM

Title: DIR-655 VA4 - Samsung SM-T800 Tablet reset router.
Post by: Tanquen on November 12, 2017, 05:56:23 PM
Not sure if its rebooting but it is off line for a minute or so.

Something similar used to happen with an old I think HTC Android phone. When the router was set for Wi-Fi G only everything was fine but with N it would reset every so often.

It had been fine for a long time now with my Pixel XL and the Samsung Tab S T800. Then after a number of updates were installed on the T800 (it had been off for a time and there were many app updates) it now just keeps reconnecting with the DIR-655 over and over.

I then noticed that the DIR-655 was also inaccessible at the time and my PC has no internet. So it’s rebooting or resetting over and over. It’s totally repeatable if Wi-Fi on the T800 is on its doing it.

I was going to show the version and firmware but forgot:

Hardware Version: A4
Firmware Version: 1.37NA

US
I tried just B and just G.
WPA-Personal. WPA2/AES Only

Just my Pixel XL and the Samsung Tab S T800.

I can try the other options later:
If you have any of these options, Try turning OFF or ON Short GI, WLAN Partition, Extra Wireless Protection and HT 20/40 Co-existence if you have it. Also testing with HT20/40Mhz Co-existence enabled will impact results as well. I prefer to use this option OFF. Recommended settings are default. Under Advanced/Advanced Wireless.

Maybe the T800 Wi-Fi died after the updates but it seems like it's a new Wi-Fi setting from Samsung that the DIR-655 don't like.
Again everything works as it did if the T800 Wi-Fi is off.

Title: Re: DIR-655 VA4 - Samsung SM-T800 Tablet reset router.
Post by: FurryNutz on November 12, 2017, 06:07:43 PM
Title: Re: DIR-655 VA4 - Samsung SM-T800 Tablet reset router.
Post by: Tanquen on November 19, 2017, 02:09:24 PM
The issue is still there with security mode disabled.
Tried B, G and N only.
Tried theses but have no idea if there is some random combo that will work.
   Try turning OFF or ON Short GI, WLAN Partition, Extra Wireless Protection
I can’t find these settings:
Channel Width set for Auto 20/40Mhz or try 20Mhz only.
HT 20/40 Co-existence if you have it

I don’t know why things changed? All was working until the Samsung Tab S was updated.
It looks like they have a history of breaking routers. The last update for the DIR655 had an update to fix connections with Samsung devices.
I guess I finally have to get a new router. :(

I did take the Samsung Tab S to the office and it seemed to be ok on the wifi there.

_____________________________________________________________________

This is so hard to follow. I found the channel width but there are only two settings and looking at the Wi-Fi analyzer it’s never used 40 MHz. All that said, it seems to be more stable with the 20 MHz setting.
Title: Re: DIR-655 VA4 - Samsung SM-T800 Tablet reset router.
Post by: FurryNutz on November 20, 2017, 09:49:31 AM
ChannelWidth will be under Setup/Wireless/Manual

HT20/40 will be under Advanced/Advanced Wireless

I presume it had been working and then the tablet was updated, possible something happened on the Tablet side thats made it incompatible with this older router.  :-\ If the Tablet isn't connecting to a OPEN wifi unsecure network, then something isn't working right between the tablet and the router...

Well, you could get a DAP or a newer class DIR router and turn into an AP and connect it to the 655 if you like to keep using the 655 has your main host router. I sometimes use a older DIR series router and connect up a AC class router to use it's wifi. Turn off the 655s wireless.