68U 2.4GHz Ongoing Problem

[jogl]

I have a 68U, recently acquired. Started out with factory firmware and installed Merlin 380.57. I was having problems with the 2.4 GHz causing the ADSL to lose the connection. I installed 378.56_2 and thought that the problem was gone. Some more details are in a previous thread, http://www.snbforums.com/threads/68u-wireless-connection-causes-problems.30040/ .

This morning my wife was using her Dell Android gizmo and same problem.

How can I fix this?

Getting kind of old, any recommendations for a better router?

Thanks,
JP.

 

[Blinkyz]

Did you "Factory to Defaults reset " when you dowgraded to 378.56_2... if no, then you should because of the change in the Wireless driver between the 2 fws

 

[jogl]

Did you "Factory to Defaults reset " when you dowgraded to 378.56_2... if no, then you should because of the change in the Wireless driver between the 2 fws

Yes, did that, and re-entered all the setup info manually.

Would it worth trying going back further than 378.56_2?

 

[Blinkyz]

No .378.56_2 is stable for the 68u.
Maybe someone else can help you on this forum for your issue, im not pro with ADSL modem or IPS.Wait a little

 

[pete y testing]

I was having problems with the 2.4 GHz causing the ADSL to lose the connection.

now lets first confirm what device you have

i assume its the asus rt-ac68u as you are installing 3rd party fw on it and not the asus dsl-ac68u which is the one with the modem built in

if it is the rt-ac68u how is it connected to what even modem you are using for adsl and how have you concluded thats its the 2.4 gig that is causing issues with your adsl ?

----------------

some questions for you

is the adsl modem you are connected to running in router mode or is it bridged and how is the asus connected is it in dynamic ip mode for its connection or pppoe mode ?

so from the logs can you post any sign of what you are claiming as at the moment there are to many factors at play to suggest 2.4 gig would and could cause the adsl to disconnect as such

how far is the modem from the router in distance

what is the make and model of the adsl modem ?

 

[jogl]

now lets first confirm what device you have

RT-AC68U

if it is the rt-ac68u how is it connected to what even modem you are using for adsl and how have you concluded thats its the 2.4 gig that is causing issues with your adsl ?

Connected with 5' patch cord. ADSL connection is dropped within 15s of connecting to 68U with a 2.4G wireless device. 5G wireless ROKU does not cause the same affect.

is the adsl modem you are connected to running in router mode or is it bridged and how is the asus connected is it in dynamic ip mode for its connection or pppoe mode ?

Hmm, don't know about router or bridged mode, will investigate. PPPOE.

so from the logs can you post any sign of what you are claiming as at the moment there are to many factors at play to suggest 2.4 gig would and could cause the adsl to disconnect as such

Which logs?

how far is the modem from the router in distance

5' cable, three or four foot physical.

what is the make and model of the adsl modem ?

It is an oldie, have had it for at least 12 years, is a GNet BB0030.

Also, I still have my Cisco E4200, it is running now, acceptably, as it has for four or five years. Nothing else changed, I took out the 68U and put in the Cisco, no problem. The Cisco works pretty well but I wanted some of the newer features of the 68U.

 

[pete y testing]

ADSL connection is dropped within 15s of connecting to 68U with a 2.4G wireless device.

so considering there is very little that connects these 2 there must be other factors at play

first check to see what connection method the asus was in and how your comp is connecting to it

also test with other devices on 2.4 gig to eliminate or substantiate the fact the 2.4 gig its self is related to the issue and its not just your wife's giz thing

 

[sfx2000]

there must be other factors at play

Not one of these I hope...

 

[pete y testing]

lol wtf

 

[jogl]

Not one of these I hope...

I might try a device something like that on this 68U if I don't get to the bottom of it.

I hooked the 68U back up this morning and same ol', actually I even noticed that when the wife's Blackberry phone woke up to announce the arrival of a text message, that was enough to cause the streaming audio to cut out.

I'm watching the System Log page and nothing shows up when it happens, do I need to enable something? Or do I need to ssh into a console to see the pertinent info?

Well, that's funny the 68U just auto logged off and when I went back to it some info was on the general log. Oop,s, it just died again. No new info though.

Jan 31 07:30:13 pppd[492]: LCP terminated by peer
Jan 31 07:30:13 pppd[492]: Connect time 75.2 minutes.
Jan 31 07:30:13 pppd[492]: Sent 5076296 bytes, received 90367078 bytes.
Jan 31 07:30:13 miniupnpd[1138]: Failed to get IP for interface ppp0
Jan 31 07:30:13 miniupnpd[1138]: SendNATPMPPublicAddressChangeNotification: cannot get public IP address, stopping
Jan 31 07:30:13 dnsmasq[424]: read /etc/hosts - 5 addresses
Jan 31 07:30:13 dnsmasq[424]: using nameserver x.188.77#53
Jan 31 07:30:13 dnsmasq[424]: using nameserver x.69.69#53
Jan 31 07:30:16 pppd[492]: Connection terminated.
Jan 31 07:30:16 pppd[492]: Sent PADT
Jan 31 07:30:16 pppd[492]: Modem hangup
Jan 31 07:30:17 WAN Connection: Fail to connect with some issues.
Jan 31 07:30:17 stop_nat_rules: apply the redirect_rules!
Jan 31 07:30:26 pppd[492]: PPP session is 5789 (0x169d)
Jan 31 07:30:26 pppd[492]: Connected to x1a:a3:85:fe via interface eth0
Jan 31 07:30:26 pppd[492]: Using interface ppp0
Jan 31 07:30:26 pppd[492]: Connect: ppp0 <--> eth0
Jan 31 07:30:27 pppd[492]: PAP authentication succeeded
Jan 31 07:30:27 pppd[492]: peer from calling number x:1A:A3:85:FE authorized
Jan 31 07:30:27 miniupnpd[1138]: Failed to get IP for interface ppp0
Jan 31 07:30:27 miniupnpd[1138]: SendNATPMPPublicAddressChangeNotification: cannot get public IP address, stopping
Jan 31 07:30:27 miniupnpd[1138]: Failed to get IP for interface ppp0
Jan 31 07:30:27 miniupnpd[1138]: SendNATPMPPublicAddressChangeNotification: cannot get public IP address, stopping
Jan 31 07:30:27 miniupnpd[1138]: Failed to get IP for interface ppp0
Jan 31 07:30:27 miniupnpd[1138]: SendNATPMPPublicAddressChangeNotification: cannot get public IP address, stopping
Jan 31 07:30:27 pppd[492]: local  IP address x.228.38
Jan 31 07:30:27 pppd[492]: remote IP address x.239.253
Jan 31 07:30:27 pppd[492]: primary   DNS address x.188.77
Jan 31 07:30:27 pppd[492]: secondary DNS address x.69.69
Jan 31 07:30:27 rc_service: ip-up 1345:notify_rc start_firewall
Jan 31 07:30:27 dnsmasq[424]: read /etc/hosts - 5 addresses
Jan 31 07:30:27 dnsmasq[424]: using nameserver x.188.77#53
Jan 31 07:30:27 dnsmasq[424]: using nameserver x.69.69#53
Jan 31 07:30:28 start_nat_rules: apply the nat_rules(/tmp/nat_rules_ppp0_eth0)!
Jan 31 07:30:28 wan: finish adding multi routes
Jan 31 07:30:28 rc_service: ip-up 1345:notify_rc stop_upnp
Jan 31 07:30:28 rc_service: waitting "start_firewall" via ip-up ...
Jan 31 07:30:29 rc_service: ip-up 1345:notify_rc start_upnp
Jan 31 07:30:29 rc_service: waitting "stop_upnp" via ip-up ...
Jan 31 07:30:29 miniupnpd[1138]: shutting down MiniUPnPd
Jan 31 07:30:31 miniupnpd[1379]: could not open lease file: /var/lib/misc/upnp.leases
Jan 31 07:30:31 miniupnpd[1379]: HTTP listening on port 40801
Jan 31 07:30:31 miniupnpd[1379]: Listening for NAT-PMP/PCP traffic on port 5351
Jan 31 07:30:32 WAN Connection: WAN was restored.

Hopefully this helps. Phone dinged again, connection interupted again.

Thanks for looking,
JP.

P.S.: Added some x's, was wondering whether posting IP and MAC addresses was a good idea.

P.P.S.: I put my Cisco/Linksys 4200 back in this morning. This has to be a settings issue, the Cisco router has been working just fine all day, nothing else was changed. What settings could cause such a problem?

 

[pete y testing]

ok try this , put the asus rt-ac68u in ap mode and connect it behind the 4200 and disable the wifi i the 4200 , eg the asus will be used for wifi only , see if the issue still occurs , this will tell you if its the routing or the actual wifi that at issue

are those logs above from the rt-ac68u as some of the entries look more like a modem log

 

[jogl]

I'll try that, also I thought that I hook up the 68 again and disable the 2.4GHz.

Those are from the "General Log" of the 68U, the first one under "system Logs".

 

[jogl]

I hooked the 68U back up to verify that the problem was still persistent, it was.

I turned off the 2.4G and now it is working fine. All of our 2.4G devices are able to connect to my Engenius outdoor AP (which is primarily used to bridge to another farm building). The ROKU TV gizmo is still working on the 5G just fine.

I intend to let it run for a while like this and then I will try hooking up a different router and running the 68U as AP with the 2.4G on and see what happens.

 

[jogl]

Experiment #2:

Unhook 68U and change it to AP mode. Reconnect Sysco E4200 to operate as router with Wifi turned off. Connect 68U to Sysco.

Result: The same. As soon as I connected to the 68U 2.4G with a wireless device the ADSL connection started dropping out.

Any ideas?

 

[L&LD]

Experiment #2:

Unhook 68U and change it to AP mode. Reconnect Sysco E4200 to operate as router with Wifi turned off. Connect 68U to Sysco.

Result: The same. As soon as I connected to the 68U 2.4G with a wireless device the ADSL connection started dropping out.

Any ideas?

Sorry, no answers for you. But hoping you track this down quickly.

Just wondering if the 2.4GHz band device that you connect with is the issue? Are you using the same one to test each time? Can you use or borrow another one to test with (preferably something vastly different)?

 

[jogl]

Have tried a few different devices, Gateway NV59 lappy running Debian Jessie, Blackberry Z10 phone, and a couple of different Android tablets.

 

[jogl]

I've been trying to change every setting that seems remotely related to the WAN and the 2.4G with no luck. Have done at least a half a dozen "Factory Default Reset"'s and reset button resets along the way.

A few more questions:

Should I take this unit back? Could it be a hardware problem? I have 3 days before the 30 are up.

Should I try a different modem? Makes no sense to me but is there a way that 2.4 could affect the modem but not 5G or wired connections?

Thanks,
JP.

 

[pete y testing]

Should I take this unit back? Could it be a hardware problem? I have 3 days before the 30 are up.

i would if only to eliminate the hardware as the issue , get the same model as there is usually nothing wrong with the rt-ac68u with stock or merlin fw , if you get a new on test with stock fw first at least for a few days

 

[Bigguns21]

Same issue with my 68U. Any firmware higher than 3.0.0.4.378_9313 appears to break the 2.4 connection. I can connect but can't go anywhere. This occurs with Asus and Merlin firmware.

 

[TheManFromUncle]

I just thought of something. What hardware version are these 68U's?