Hi,

I'm on my second 2862, that's got a very basic config on a BT line.

I don't have power issues and i'm on my 2nd replacement router - randomly the router reboots.

Any one experiencing this, i'm at wits end and i'm having to use my BT router as my line is taking a performance hit.

(Several tech support cases and the drayek support guys not knowing how to troubleshoot properly other than sending off my zero information crash log)

Tried everything you can think of to resolve.

I've seen these random reboots with no crash info as well (and nothing useful in syslog - either USB or to syslog server). I do not have power issues either. I've not bothered logging a case..... This goes back many firmware versions, maybe back into the 3.8.8's.

I did have a couple of these restarts a week but now maybe one every two weeks (average, sometimes shorter interval, sometimes longer). Often the restarts happen whilst there is active traffic (making them inconvenient).

Reason for improvement is not clear. At one time I was monitoring my VDSL closely and would stay logged into the DSL status page of the web UI - the reduction might have coincided roughly with me winding down that practice (I now only log unto the web UI for brief periods). Possibly the reduction could have come from the last few updates (3.9.1 onw.)

Amusingly, in case some kind of memory leak was involved, I decided to setup a scheduled restart in the early hours of Monday morning... It didn't trigger!

[Rough config: VDSL negotiating at 80/20, A couple of VLANs set up, Normal + Guest wifi both 2.4 & 5GHz, Syslog to USB and a pi syslog server. Manly access is NAT to one IP of a /29 but config includes routing of other public IPs to other VLANS (currently infrequently used and not correlating with the restarts), moderately complex firewall rules]
(edit for typos)

Example of the reboot..

6-lhr1.steamcontent.com
<150>Oct 21 18:12:54 DrayTek: Local User (MAC=B4-6B-FC-B8-0B-C8): 10.10.10.58 DNS -> 208.67.222.222 inquire cache15-lhr1.steamcontent.com
<150>Oct 21 18:12:54 DrayTek: Local User (MAC=B4-6B-FC-B8-0B-C8): 10.10.10.58 DNS -> 208.67.220.220 inquire cache15-lhr1.steamcontent.com
<150>Oct 21 18:12:56 DrayTek: Local User (MAC=B4-6B-FC-B8-0B-C8): 10.10.10.58 DNS -> 208.67.222.222 inquire cache27-lhr1.steamcontent.com
<166>Oct 21 18:12:56 DrayTek: acme client: Error: DrayDDNS account not exist
<150>Oct 21 18:12:56 DrayTek: Local User (MAC=B4-6B-FC-B8-0B-C8): 10.10.10.58 DNS -> 208.67.222.222 inquire cache6-lhr1.steamcontent.com
******BOOM REBOOT****
<134>Jan  1 00:00:03 DrayTek: [APPE][Load APPE signature failed! System will use APPE default signature.]
<181>Jan  1 00:00:03 DrayTek: [DHCP] Vigor DHCP server has given out an IP [MAC: a4-5e-60-dc-89-57, IP: 10.10.10.57]
<150>Jan  1 00:00:03 DrayTek: Local User (MAC=A4-5E-60-DC-89-57): 10.10.10.57 DNS -> 208.67.222.222 inquire push.apple.com
<150>Jan  1 00:00:03 DrayTek: Local User (MAC=A4-5E-60-DC-89-57): 10.10.10.57 DNS -> 208.67.222.222 inquire 57.10.10.10.in-addr.arpa
<150>Jan  1 00:00:03 DrayTek: WLAN_DBG - MLME Associate MAC a4:5e:60:dc:89:57,net_id=4

<150>Jan  1 00:00:03 DrayTek: WLAN_DBG - WPA2 capable client
<150>Jan  1 00:00:03 DrayTek: WLAN_DBG - WPA handshake start for a4:5e:60:dc:89:57
<150>Jan  1 00:00:03 DrayTek: WLAN_DBG - RSN, Send key to: a4:5e:60:dc:89:57
<150>Jan  1 00:00:03 DrayTek: WLAN_DBG - send 1st packet in 4-way handshake
<150>Jan  1 00:00:03 DrayTek: WLAN_DBG - EAPoL_handler, from a4:5e:60:dc:89:57
<150>Jan  1 00:00:03 DrayTek: WLAN_DBG - Wpa_EAPoL_handler, from a4:5e:60:dc:89:57
<150>Jan  1 00:00:03 DrayTek: WLAN_DBG - EAPOL_KEY
<150>Jan  1 00:00:03 DrayTek: WLAN_DBG - parse_EAPOL_Key

DrayTek> sys ver dbg
Router Model: Vigor2862ac    Version: 3.9.1.2_BT English
Profile version: 3.0.0    Status: 1 (0x12544cc4)
Router IP: 10.10.10.1    Netmask: 255.255.255.0
Firmware Build Date/Time: Sep 23 2019 17:10:13
Router Name: DrayTek
Revision: 85041 V3912_USR32
Current VDSL2 Firmware Version: 07-07-09-05-01-07
ADSL Firmware Version: 07-07-03-0F-00-01 Annex A
VDSL2 Firmware Version: 07-07-09-05-01-07
Router serial no: 192003805635

!!!Exception debug info is empty!!!
get from address : 80004000
Exception debug info is reset!!
DrayTek>

My solution was to move to a 130 as the modem and hence isolate the DSL line from the router. The 130 is pretty solid. I've been through a 2860, 2862, 2925 and am currently using a 2926ac. All have experienced the random re-boot issue. The 2926ac re-boots itself every few days for no reason that I have been able to ascertain.

Piste Basher wrote:
My solution was to move to a 130 as the modem and hence isolate the DSL line from the router. The 130 is pretty solid. I've been through a 2860, 2862, 2925 and am currently using a 2926ac. All have experienced the random re-boot issue. The 2926ac re-boots itself every few days for no reason that I have been able to ascertain.

I presume that was just to prevent the DSL infrastructure from de-rating your line? I presume that the restarts are still happening?

Yes, it was annoying enough having to reboot the router when making many of the configuration changes. I decided I could do without that. As said above, the 2926 reboots itself every few days - I can usually tell when my TV suddenly announces that it is no longer connected to the internet. This doesn't affect the 130 though, so my vdsl speed stays unaffected.
I've read the Support Pages guide to resolving frequent reboots but none of their suggestions work for me.