Wireless peers cannot see each other when internet is down

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cowwoc
DD-WRT Novice


Joined: 24 Sep 2008
Posts: 24

PostPosted: Tue Jul 31, 2018 20:09    Post subject: Wireless peers cannot see each other when internet is down Reply with quote
Hi,

I have two routers with WDS enabled:

Linksys WRT1900ACS v1 (WDS AP)
Linksys WRT1900ACS v2 (WDS Station)
running dd-wrt v3.0-r36410 std 07/28/18. I configured two wireless peers to ping each other endlessly.

What's odd is that when the internet connection is down, the ping fails with "Destination host unreachable" but as soon as the internet connection comes back the ping works just fine.

My internet connection type is PPPoE.

Is this normal? Shouldn't I be able to ping internal clients even when the internet connection is down?

Thank you,
Gili

I cross-posted this to https://superuser.com/q/1344860/57662 and they seem to think this should work.
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WENED
DD-WRT User


Joined: 30 May 2017
Posts: 337
Location: Rural Manitoba

PostPosted: Wed Aug 01, 2018 4:39    Post subject: Re: Wireless peers cannot see each other when internet is do Reply with quote
cowwoc wrote:
Hi,

I have two routers with WDS enabled:

Linksys WRT1900ACS v1 (WDS AP)
Linksys WRT1900ACS v2 (WDS Station)
running dd-wrt v3.0-r36410 std 07/28/18. I configured two wireless peers to ping each other endlessly.

What's odd is that when the internet connection is down, the ping fails with "Destination host unreachable" but as soon as the internet connection comes back the ping works just fine.

I agree, it should work. I have three wds stations and WiFi peers can ping each other with or without internet. LAN stations cannot ping each other but can ping to wireless peers. Even though ping doesn't work between LAN clients on different routers, they still are fully accessible for all other functions. Just try search \\ip and see if file explorer finds the device.

My internet connection type is PPPoE.

Is this normal? Shouldn't I be able to ping internal clients even when the internet connection is down?

Thank you,
Gili

I cross-posted this to https://superuser.com/q/1344860/57662 and they seem to think this should work.

_________________
WRT3200acm Master WDS 5GHz 80Mhz r42054
WRT3200acm WDS Station rr42054

WRT1900Ac V1 WDS AP 5Ghz rr42054
(Defective, no 2.4Ghz but 5Ghz works great)
WRT1900AC V1 WDS Station rr42054

WRT1900AC V1 SPARE r41418
WRT1200AC V1 Client-Bridge rr42054

WRT54G DD-WRT v3.0-r37305 micro Client-Bridged for 1 IP Camera
EX6200 DD-WRT r38535 - Spare
EX7000 Stock Firmware Spare
Devices and Cameras and Sensors
15 WiFi cameras, 4 desktops, 2 laptop, 12 Sonoff Basic/TH16, Artisan 700 Printer, Ongoing testing of other devices.
cowwoc
DD-WRT Novice


Joined: 24 Sep 2008
Posts: 24

PostPosted: Wed Aug 01, 2018 5:16    Post subject: Re: Wireless peers cannot see each other when internet is do Reply with quote
WENED wrote:
cowwoc wrote:
Hi,

I have two routers with WDS enabled:

Linksys WRT1900ACS v1 (WDS AP)
Linksys WRT1900ACS v2 (WDS Station)
running dd-wrt v3.0-r36410 std 07/28/18. I configured two wireless peers to ping each other endlessly.

What's odd is that when the internet connection is down, the ping fails with "Destination host unreachable" but as soon as the internet connection comes back the ping works just fine.

I agree, it should work. I have three wds stations and WiFi peers can ping each other with or without internet. LAN stations cannot ping each other but can ping to wireless peers. Even though ping doesn't work between LAN clients on different routers, they still are fully accessible for all other functions. Just try search \\ip and see if file explorer finds the device.

My internet connection type is PPPoE.

Is this normal? Shouldn't I be able to ping internal clients even when the internet connection is down?

Thank you,
Gili

I cross-posted this to https://superuser.com/q/1344860/57662 and they seem to think this should work.


You quoted my post but did not reply. Did I miss something?

Thanks,
Gili
WENED
DD-WRT User


Joined: 30 May 2017
Posts: 337
Location: Rural Manitoba

PostPosted: Wed Aug 01, 2018 5:20    Post subject: Reply with quote
Sorry, me bad, if you look at the post you will see that I entered a reply but messed up the input and added it to your original reply.
_________________
WRT3200acm Master WDS 5GHz 80Mhz r42054
WRT3200acm WDS Station rr42054

WRT1900Ac V1 WDS AP 5Ghz rr42054
(Defective, no 2.4Ghz but 5Ghz works great)
WRT1900AC V1 WDS Station rr42054

WRT1900AC V1 SPARE r41418
WRT1200AC V1 Client-Bridge rr42054

WRT54G DD-WRT v3.0-r37305 micro Client-Bridged for 1 IP Camera
EX6200 DD-WRT r38535 - Spare
EX7000 Stock Firmware Spare
Devices and Cameras and Sensors
15 WiFi cameras, 4 desktops, 2 laptop, 12 Sonoff Basic/TH16, Artisan 700 Printer, Ongoing testing of other devices.
cowwoc
DD-WRT Novice


Joined: 24 Sep 2008
Posts: 24

PostPosted: Wed Aug 01, 2018 5:26    Post subject: Reply with quote
WENED wrote:
Sorry, me bad, if you look at the post you will see that I entered a reply but messed up the input and added it to your original reply.


Right, so in response to your post: I tried accessing machines using Remote Desktop or network shares while getting "Destination host unreachable" and it did not work, so I think the "ping" result is valid.

Further, I am having major problems getting Chromecast working on this build as it also runs into "Destination host unreachable" intermittently (even when internet is up). I am having to reboot the routers for things to get back to normal... but it keeps on breaking every once in a while.

Which dd-wrt build and router models are you using? Have you tried a recent beta build? They all seem to be broken (in different ways) going back a year.

Thanks,
Gili
WENED
DD-WRT User


Joined: 30 May 2017
Posts: 337
Location: Rural Manitoba

PostPosted: Wed Aug 01, 2018 5:30    Post subject: Reply with quote
r36330
You can see that on my post at the bottom.

_________________
WRT3200acm Master WDS 5GHz 80Mhz r42054
WRT3200acm WDS Station rr42054

WRT1900Ac V1 WDS AP 5Ghz rr42054
(Defective, no 2.4Ghz but 5Ghz works great)
WRT1900AC V1 WDS Station rr42054

WRT1900AC V1 SPARE r41418
WRT1200AC V1 Client-Bridge rr42054

WRT54G DD-WRT v3.0-r37305 micro Client-Bridged for 1 IP Camera
EX6200 DD-WRT r38535 - Spare
EX7000 Stock Firmware Spare
Devices and Cameras and Sensors
15 WiFi cameras, 4 desktops, 2 laptop, 12 Sonoff Basic/TH16, Artisan 700 Printer, Ongoing testing of other devices.
WENED
DD-WRT User


Joined: 30 May 2017
Posts: 337
Location: Rural Manitoba

PostPosted: Wed Aug 01, 2018 5:45    Post subject: Reply with quote
I wish I could help but Chromecast seems to be a real problem with recent builds. Look up other posts and you will see everyone is having the same problem. As for your original question, the only suggestion I have is to make sure you are using local DNS as your primary DNS server. Not sure if it helps but just maybe that simple. Also I have all my devices listed in Services>Static Leases. I have 99 slots assigned so I have lots of spare addresses and I start my DHCP leases after the last static address.
_________________
WRT3200acm Master WDS 5GHz 80Mhz r42054
WRT3200acm WDS Station rr42054

WRT1900Ac V1 WDS AP 5Ghz rr42054
(Defective, no 2.4Ghz but 5Ghz works great)
WRT1900AC V1 WDS Station rr42054

WRT1900AC V1 SPARE r41418
WRT1200AC V1 Client-Bridge rr42054

WRT54G DD-WRT v3.0-r37305 micro Client-Bridged for 1 IP Camera
EX6200 DD-WRT r38535 - Spare
EX7000 Stock Firmware Spare
Devices and Cameras and Sensors
15 WiFi cameras, 4 desktops, 2 laptop, 12 Sonoff Basic/TH16, Artisan 700 Printer, Ongoing testing of other devices.
cowwoc
DD-WRT Novice


Joined: 24 Sep 2008
Posts: 24

PostPosted: Wed Aug 01, 2018 13:54    Post subject: Reply with quote
WENED wrote:
I wish I could help but Chromecast seems to be a real problem with recent builds. Look up other posts and you will see everyone is having the same problem. As for your original question, the only suggestion I have is to make sure you are using local DNS as your primary DNS server. Not sure if it helps but just maybe that simple. Also I have all my devices listed in Services>Static Leases. I have 99 slots assigned so I have lots of spare addresses and I start my DHCP leases after the last static address.


Given that I have both a v1 and v2 model of the ACS1900, would it be productive to swap which one is the WDS AP? I read a post that said the v1 drivers were more buggy than v2. Is that correct?

Gili
cowwoc
DD-WRT Novice


Joined: 24 Sep 2008
Posts: 24

PostPosted: Thu Aug 02, 2018 6:01    Post subject: Reply with quote
I spent a day migrating to OpenWRT (never tried it before) and the result is extremely stable and better-performing than dd-wrt. Surprisingly, their user interface was on par with dd-wrt. They just have some holes in their documentation, but so does dd-wrt.

Honestly, what a waste of time. I should have made the jump months ago.

To anyone else having problems with WRT1900ACS on dd-wrt, I strongly recommend you try the latest stable build of OpenWRT.
myersw
DD-WRT Guru


Joined: 13 Jun 2006
Posts: 1609
Location: SE Michigan USA

PostPosted: Sat Aug 11, 2018 14:37    Post subject: Reply with quote
cowwoc wrote:
I spent a day migrating to OpenWRT (never tried it before) and the result is extremely stable and better-performing than dd-wrt. Surprisingly, their user interface was on par with dd-wrt. They just have some holes in their documentation, but so does dd-wrt.

Honestly, what a waste of time. I should have made the jump months ago.

To anyone else having problems with WRT1900ACS on dd-wrt, I strongly recommend you try the latest stable build of OpenWRT.


You are probably aware of davidc502 LEDE builds. In my experience with the WRT's I had his builds were then best and from what I read are still considered to best. Link to his stuff, if you do not know it is:
https://davidc502sis.dynamic-dns.net/

My WRT's ran better with his builds then anything else, OEM or DD-WRT. They still had the driver issues which I think are pretty well taken care of now, at least I do not see the complaints that there were about them. I just finally got fed up with Belkin/Linksys/Marvel dragging their feet to get a good driver to the 3rd party devs. Just wrong when a device says it supports 3rd party firmware and then doesn't really.

--bill

_________________
Unifi Security Gateway: Unifi Firmware
Netgear r7800: Voxel Firmware
Modem:Netgear CM500V voice and Data.
ISP:Comcast
tutorial for flashing "WRT" series:
http://www.dd-wrt.com/phpBB2/viewtopic.php?t=287813
DD-WRT Installation, Upgrade & Basic Setup–Cliff Notes:
http://www.dd-wrt.com/phpBB2/viewtopic.php?t=311117
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http://www.instructables.com/id/Install-and-Configure-a-DD-WRT-Kong-Router/
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