This topic

Change to ASUS AC68U router - internet connection keeps disconnecting

adam2311 — Sun, 29 Nov 2020 09:20:05 GMT

Hi to anyone reading this.

My BT Homehub is about 4 years old and needs restarting alot, so I decided to buy a Asus AC68U ADSL/VDSL modem router.

I've set it up using the wizard and also setup using manual setting I have found all over the BT Community.

For some reason, the router will not stay connected to the internet. The DSL connection always shows connectivity to DSL Exchange Broadcom, but the WAN status drops and goes blank, and the router says disconnected.

I have tried so many different settings that I have found through the forums, but not luck. If I change a setting and update the router it starts up, connects and works for up to 1 hr before being disconnected.

Attached is my DSL log, if that helps.

These are my WAN Settings:

These are my DSL Settings:

I'd appreciate any help, as I need the internet next week for work and at the moment, i'm in trouble!

Re: Change to ASUS AC68U router - internet connection keeps disconnecting

TimCurtis — Sun, 29 Nov 2020 09:39:31 GMT

@adam2311

Well all your settings look absolutely fine , very much in line with my AC68U.

Try & post the System Log where it disconnects as that might be helpful.

The fact that the HomeHub needs restarting alot might be indicative of line problems , either internally or externally.

What sort of BT master socket do you have , is it the sort that needs an additional filter/splitter or the type with the filter inbuilt?

Re: Change to ASUS AC68U router - internet connection keeps disconnecting

adam2311 — Sun, 29 Nov 2020 10:23:03 GMT

Thanks for coming back to me @TimCurtis

To be honest, we restart as we think the internet is slow or sluggish, not that it isn't working or disconnected on the BT HomeHub.

Just strange how this router can't last more than 1 hr before disconnecting and I have to manually reboot to get it to reconnect.

I have a micro filter attached. My house is pretty old, the phone socket plate is just blank white.

This came up during the last drop:

Nov 29 05:29:52 pppd[2827]: Timeout waiting for PADO packets
Nov 29 05:29:57 pppd[2827]: Connected to f8:13:08:40:d1:21 via interface vlan3880
Nov 29 05:29:57 pppd[2827]: Connect: ppp0 <--> vlan3880
Nov 29 05:30:05 syslog: wlceventd_proc_event(505): eth1: Auth A4:08:01:36:AE:42, status: Successful (0)
Nov 29 05:30:05 syslog: wlceventd_proc_event(534): eth1: Assoc A4:08:01:36:AE:42, status: Successful (0)
Nov 29 05:30:19 syslog: wlceventd_proc_event(505): eth1: Auth A4:08:01:36:AE:42, status: Successful (0)
Nov 29 05:30:19 syslog: wlceventd_proc_event(534): eth1: Assoc A4:08:01:36:AE:42, status: Successful (0)
Nov 29 05:30:34 syslog: wlceventd_proc_event(505): eth1: Auth A4:08:01:36:AE:42, status: Successful (0)
Nov 29 05:30:34 syslog: wlceventd_proc_event(534): eth1: Assoc A4:08:01:36:AE:42, status: Successful (0)
Nov 29 05:30:36 syslog: wlceventd_proc_event(469): eth1: Deauth_ind 00:03:7F:CE:E7:6D, status: 0, reason: Deauthenticated because sending station is leaving (or has left) IBSS or ESS (3)
Nov 29 05:30:39 syslog: wlceventd_proc_event(505): eth1: Auth 00:03:7F:CE:E7:6D, status: Successful (0)
Nov 29 05:30:39 syslog: wlceventd_proc_event(534): eth1: Assoc 00:03:7F:CE:E7:6D, status: Successful (0)
Nov 29 05:30:49 syslog: wlceventd_proc_event(505): eth1: Auth A4:08:01:36:AE:42, status: Successful (0)
Nov 29 05:30:49 syslog: wlceventd_proc_event(534): eth1: Assoc A4:08:01:36:AE:42, status: Successful (0)
Nov 29 05:31:00 pppd[2827]: LCP: timeout sending Config-Requests
Nov 29 05:31:00 pppd[2827]: Connection terminated.
Nov 29 05:31:00 pppd[2827]: Modem hangup

This seems quite common in my system log:

Nov 29 08:05:25 pppd[2827]: Timeout waiting for PADO packets

Any ideas?

Re: Change to ASUS AC68U router - internet connection keeps disconnecting

adam2311 — Sun, 29 Nov 2020 11:48:12 GMT

Just a quick update on this, I have swapped the microfilter over, from the one provided by Asus back to BT one.

So far, download speeds dropped freom 39 to 33 and upload 9 to 4.

However, so far 2hrs no drop out of connection.

Does this seem plausible? And is there anything I can do to get the speeds back up?

Re: Change to ASUS AC68U router - internet connection keeps disconnecting

Keith_Beddoe — Sun, 29 Nov 2020 12:05:07 GMT

You have SRA (Seamless Rate Adaption) enabled. This is not supported by BT, so its possible its affecting your connection.

Re: Change to ASUS AC68U router - internet connection keeps disconnecting

adam2311 — Sun, 29 Nov 2020 12:20:02 GMT

Thanks @Keith_Beddoe i've just disabled this.

Re: Change to ASUS AC68U router - internet connection keeps disconnecting

adam2311 — Sun, 29 Nov 2020 12:47:18 GMT

Just updating this thread as I found it helpful when reading others.

Router/modem has now stayed live for record time.

No drops what so ever, the changing of Microsfilter from Asus back to BT provided seems to have done the trick.

However, the BT microfilter takes my download down from 39 to 33 and upload 9 to 3, when i switch back to Asus it goes back to to 39down and 9up, but drop out continue to happen.

Looks like I am having to go down the BT mircofilter route so I have internet, and take the hit with the really bad upload.

Going to mess around with settings to see if I can get the upload up

Re: Change to ASUS AC68U router - internet connection keeps disconnecting

TimCurtis — Sun, 29 Nov 2020 13:27:54 GMT

@adam2311 @Keith_Beddoe

The SRA setting isn't likely to be causing any issues as mine has had that setting for atleast 5 years now.

Your settings were fine as far as I could see so leave them as they were & don't keep fiddling with them as that will upset the DLM and further reduce your speeds.

Odd about the microfilters though.

These are my dsl settings:-

The differences with yours are not significant but just my choice.

Re: Change to ASUS AC68U router - internet connection keeps disconnecting

adam2311 — Sun, 29 Nov 2020 16:33:22 GMT

Thanks for coming back to me @TimCurtis

I've copied your Rx AGC GAIN Adjustment to see if I can improve my speeds.

Re: Change to ASUS AC68U router - internet connection keeps disconnecting

adam2311 — Sun, 29 Nov 2020 19:54:42 GMT

@TimCurtis are you on BT?

I was told VDSL Profile needed to be 17a

Re: Change to ASUS AC68U router - internet connection keeps disconnecting

TimCurtis — Mon, 30 Nov 2020 09:59:53 GMT

@adam2311

I'm with BT on profile 17a . I set 30a years ago in case that ever happened but the router will only ever connect on the highest available , that being 17a.

Re: Change to ASUS AC68U router - internet connection keeps disconnecting

adam2311 — Mon, 30 Nov 2020 10:02:59 GMT

@TimCurtis

Out of curiosity, I changed mine to match yours, went from 33 to 37 download.

Probably just the router settling in, or it did make a difference, who knows 😂

Re: Change to ASUS AC68U router - internet connection keeps disconnecting

TimCurtis — Mon, 30 Nov 2020 11:07:40 GMT

@adam2311

Probably coincidence but time of day reconnecting can change things a bit.

Re: Change to ASUS AC68U router - internet connection keeps disconnecting

adam2311 — Mon, 30 Nov 2020 12:40:27 GMT

Good point @TimCurtis

I'm going to monitor over the next 2 weeks.

I've got a new microfilter coming today, to test if the BT one does infact change rates.

Thanks for all your help.