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[Help] Vigor 2766ac Reboot Issue...

vigor2800btbbuser
Topic Author
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Junior Member

06 Mar 2022 14:36 #1 by vigor2800btbbuser

[Help] Vigor 2766ac Reboot Issue... was created by vigor2800btbbuser

I have owned a Vigor 2766 for a week now. It is running the latest firmware (4.4.0_BT). I have noticed that three times now, when I access the router's configuration page (with latest Firefox or latest Edge, from a PC directly connected to the router) and select the Diagnostics (DLS Stats) page the nothing happens then the router reboots. :cry:

Otherwise it is stable. When I logged in to it just now it was up for 107 hours. I then went to the DSL page and it rebooted. I switched to Firefox and tried again and it rebooted again.

Any suggestions?

The output from sys ver dbg if it helps:



Code:
Router Model: Vigor2766ac    Version: 4.4.0_BT English
Profile version: 4.0.0    Status: 1 (0x8701e215)
Router IP: 192.168.1.1    Netmask: 255.255.255.0
Firmware Build Date/Time: Nov 25 2021 14:19:43
Router Name: DrayTek
Revision: 2890_79d39042b4 V440
Current DSL Firmware Version: 12-3-2-3-0-5 Annex A
Router serial no: XXXXXXXXXXXX

---------firmware exception debug info on cpu0-----------------------------
 EPC=1100fc03, Cause=635b22b0, Status=637e9c70, BadAddr=00000000, RetAddr=6102d0a0
 exception id=12(Ov)
 exception occured in IdleTask Timeout
 task_id=150, SP=0x62f377e0(4312 bytes free, 1168 used bytes)
 system tick =10600
 CURRENT_VERSION : 4.4.0_RC7
 get from address : 60017000
 Dump CPU0 registers:
-----------------------------------------
 $ 0: 00000000 fffffffe 00000000 00000000
 $ 4: 00000000 637e9240 00000000 635b599c
 $ 8: 635b22b0 00000001 62f3785c 00000004
 $12: 62f37b88 00000040 00000000 00000001
 $16: 637e9240 00000001 637e9c40 637e9c70
 $20: 637e9c4c 00000014 636b0000 62058500
 $24: 00000000 00000000 00000000 00000000
 $28: 00000000 62f377e0 637e9240 6102d0a0
List a possible caller functions:
----------------------------------
 func( 0)=6102d0a0
 func( 1)=610286b8
 func( 2)=604d863c
 func( 3)=6102d0a0
 func( 4)=6102d704
 func( 5)=61030d70
 func( 6)=6102d704
 func( 7)=610313a8
 func( 8)=605f07ac
 func( 9)=61030d70
 func(10)=60f75880
 func(11)=60f75880
 func(12)=6059fe90
 func(13)=604d863c
 func(14)=60f75880
 func(15)=605a7c4c
 func(16)=604d863c
 func(17)=60f76394
 func(18)=605aae08
 func(19)=605e9398
List backtrace functions:
----------------------------------
 func( 0)=1100fc03

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admin3
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Site Admin

07 Mar 2022 10:33 #2 by admin3

Replied by admin3 on topic Re: [Help] Vigor 2766ac Reboot Issue...

That's at least a nice clear-cut fault. I don't see newer beta firmware for the Vigor 2766 right now so I can't suggest to get a beta firmware from the support team.

I think the best way to resolve this will be to make a support ticket, include the line type that the router's connected to (ADSL, VDSL or G.fast?), with what you've described here.
It should be resolved quickly since it's easy to trigger with clear actions causing it.
If the support team can't reproduce it, it could be line or ISP-equipment specific. It may also help to get the output of "vdsl inv co" from the router's web console (top right sliders icon).

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