Plusnet Hub One reboot loop

[#1]

Over the past week my Plusnet Hub One router has developed a fault.  It will run fine for a few days then suddenly reboot itself.  It will come back up for a few minutes and then reboot again.  This happens at any time of day or night so does not coincide with heavy use or a large number of wireless clients.

I have checked the event log on the router and it appears to log a large number of "Reset button pressed" events before rebooting.  I can confirm that the reset button is not being pressed and there's nothing nearby which could exert pressure on the button.  The router is on a well ventilated window sill in a quiet part of the house.

To work-around the problem I turn off and unplug the router from power for 10 minutes.  After plugging it back in and powering up it remains stable a few days before this repeats.

The most recent occurrence from today's event log:

00:00:36, 08 Nov.	( 37.570000) WiFi auto selected channel 44
00:00:36, 08 Nov.	( 37.570000) 36-​91::40-​92::44-​91::48-​90::52-​90::56-​90::60-​90::64-​89::100-​92::104-​92::108-​92::112-​93::116-​92::120-​95::124-​95::128-​95
00:00:36, 08 Nov.	( 37.570000) 5 GHz Wireless: Rescan, Reason: 'Restart'
00:00:36, 08 Nov.	( 37.570000) WiFi auto selected channel 6
00:00:36, 08 Nov.	( 37.570000) 1-​99::2-​97::3-​97::4-​96::5-​95::6-​95::7-​95::8-​96::9-​96::10-​97::11-​85::12-​87::13-​85
00:00:36, 08 Nov.	( 37.560000) 2.4 GHz Wireless: Rescan, Reason: 'Restart'
00:00:36, 08 Nov.	( 37.000000) WAN Auto-​sensing running.
00:00:31, 08 Nov.	( 31.900000) System up, firmware version: 4.7.5.1.83.8.263
00:00:27, 08 Nov.	( 28.560000) WPA2 mode selected
00:00:27, 08 Nov.	( 28.560000) WPS enabled
00:00:25, 08 Nov.	( 26.200000) WPA2 mode selected
00:00:25, 08 Nov.	( 26.200000) WPS enabled
00:00:16, 08 Nov.	( 17.570000) System start Button press
07:27:52, 29 Mar.	( 8223.100000) PPP LCP Send Termination Request [User request]
07:27:50, 29 Mar.	( 8221.710000) Reset button pressed. BT Home Hub is going to reboot!
07:27:50, 29 Mar.	( 8221.710000) The system is going DOWN for reboot.
07:27:47, 29 Mar.	( 8218.260000) Reset button pressed
07:27:31, 29 Mar.	( 8202.360000) Reset button pressed
07:27:17, 29 Mar.	( 8187.910000) Reset button pressed
07:27:13, 29 Mar.	( 8184.810000) Reset button pressed
07:27:09, 29 Mar.	( 8179.960000) Reset button pressed
07:27:08, 29 Mar.	( 8179.310000) Reset button pressed
07:27:07, 29 Mar.	( 8178.160000) Reset button pressed
07:27:06, 29 Mar.	( 8176.910000) Reset button pressed
07:25:46, 29 Mar.	( 8097.410000) Reset button pressed
07:25:44, 29 Mar.	( 8095.510000) Reset button pressed
07:25:41, 29 Mar.	( 8092.210000) Reset button pressed
07:25:39, 29 Mar.	( 8090.860000) Reset button pressed
07:25:39, 29 Mar.	( 8090.360000) Reset button pressed
07:25:39, 29 Mar.	( 8090.110000) Reset button pressed
07:25:38, 29 Mar.	( 8089.560000) Reset button pressed
07:23:40, 29 Mar.	( 7971.150000) Reset button pressed
07:23:37, 29 Mar.	( 7968.850000) Reset button pressed
07:23:36, 29 Mar.	( 7967.100000) Reset button pressed
07:22:53, 29 Mar.	( 7924.100000) Reset button pressed
06:42:47, 29 Mar.	( 5518.000000) Device disconnected: Hostname: Unknown-​9c-​e6-​35-​bd-​8a-​5b-​2 IP: 192.168.1.72 MAC: 9c:e6:35:bd:8a:5b
06:42:44, 29 Mar.	ath00: STA 9c:e6:35:bd:8a:5b IEEE 802.11: Client disassociated
06:41:44, 29 Mar.	( 5455.180000) Lease for IP 192.168.1.72 renewed by host Unknown-​9c-​e6-​35-​bd-​8a-​5b-​2 (MAC 9c:e6:35:bd:8a:5b). Lease duration: 1440 min
06:41:44, 29 Mar.	( 5455.180000) Device connected: Hostname: Unknown-​9c-​e6-​35-​bd-​8a-​5b-​2 IP: 192.168.1.72 MAC: 9c:e6:35:bd:8a:5b Lease time: 1440 min. Link rate: 40.6 Mbps
06:41:44, 29 Mar.	( 5455.110000) Lease requested
06:41:42, 29 Mar.	ath00: STA 9c:e6:35:bd:8a:5b IEEE 802.11: Client associated
06:33:25, 29 Mar.	ath10: STA f4:06:16:8e:c5:50 IEEE 802.11: WiFi registration failed
06:28:22, 29 Mar.	( 4652.990000) Device disconnected: Hostname: iPhone IP: 192.168.1.68 MAC: f4:06:16:8e:c5:50
06:27:21, 29 Mar.	( 4592.760000) Host iPhone (MAC f4:06:16:8e:c5:50) using IP 192.168.1.68 detected on interface ath00, port -​1
06:27:17, 29 Mar.	( 4587.990000) Device disconnected: Hostname: Unknown-​f0-​51-​ea-​13-​17-​7b-​2 IP: 192.168.1.74 MAC: f0:51:ea:13:17:7b
06:27:16, 29 Mar.	ath00: STA f4:06:16:8e:c5:50 IEEE 802.11: Client associated
06:27:16, 29 Mar.	ath00: STA f4:06:16:8e:c5:50 IEEE 802.11: Client disassociated
06:27:13, 29 Mar.	ath00: STA f0:51:ea:13:17:7b IEEE 802.11: Client disassociated
06:27:12, 29 Mar.	( 4583.730000) Lease for IP 192.168.1.68 renewed by host iPhone (MAC f4:06:16:8e:c5:50). Lease duration: 1440 min
06:27:12, 29 Mar.	( 4583.730000) Device connected: Hostname: iPhone IP: 192.168.1.68 MAC: f4:06:16:8e:c5:50 Lease time: 1440 min. Link rate: 6.0 Mbps
06:27:12, 29 Mar.	( 4583.660000) Lease requested
06:27:11, 29 Mar.	( 4582.770000) Host iPhone (MAC f4:06:16:8e:c5:50) using IP 192.168.1.68 detected on interface ath10, port -​1
06:27:11, 29 Mar.	( 4582.220000) Lease for IP 192.168.1.74 renewed by host Unknown-​f0-​51-​ea-​13-​17-​7b-​2 (MAC f0:51:ea:13:17:7b). Lease duration: 1440 min
06:27:11, 29 Mar.	ath10: STA f4:06:16:8e:c5:50 IEEE 802.11: Client associated
06:27:08, 29 Mar.	ath00: STA f0:51:ea:13:17:7b IEEE 802.11: Client associated
06:26:13, 29 Mar.	ath00: STA f0:51:ea:13:17:7b IEEE 802.11: Client disassociated
06:26:08, 29 Mar.	ath00: STA f0:51:ea:13:17:7b IEEE 802.11: Client associated
06:23:25, 29 Mar.	ath10: STA c8:f6:50:18:44:9e IEEE 802.11: WiFi registration failed
06:19:47, 29 Mar.	ath00: STA c8:f6:50:18:44:9e IEEE 802.11: Client associated
06:19:47, 29 Mar.	ath00: STA c8:f6:50:18:44:9e IEEE 802.11: Client disassociated
06:18:47, 29 Mar.	ath10: STA c8:f6:50:18:44:9e IEEE 802.11: Client associated

A similar event log was produced Wednesday last week but it no longer available as the logs have rolled-over.

From the Helpdesk section:

1. Product name:	Plusnet Hub
2. Serial number:	+081441+NQ74604302
3. Firmware version:	Software version 4.7.5.1.83.8.263 Last updated 15/03/20
4. Board version:	Plusnet Hub One
5. DSL uptime:	0 days, 02:03:54
6. Data rate:	9997 / 39950
7. Maximum data rate:	26969 / 97908
8. Noise margin:	17.7 / 22.8
9. Line attenuation:	8.5 / 10.4
10. Signal attenuation:	8.8 / 10.4
11. Data sent/received:	198.0 MB / 2.5 GB
12. Broadband username:	thevollers@plusdsl.net
13. 2.4 GHz Wireless network/SSID:	The Vollers
14. 2.4 GHz Wireless connections:	Enabled (802.11 b/g/n (up to 144 Mb/s))
15. 2.4 GHz Wireless security:	WPA2
16. 2.4 GHz Wireless channel:	Automatic (Smart Wireless)
17. 5 GHz Wireless network/SSID:	The Vollers
18. 5 GHz Wireless connections:	Enabled (802.11 a/n/ac (up to 1300 Mb/s))
19. 5 GHz Wireless security:	WPA2
20. 5 GHz Wireless channel:	Automatic (Smart Wireless)
21. Firewall:	Default
22. MAC Address:	d8:d7:75:a6:a6:a2
23. Modulation:	G.993.2 Annex B
24. Software variant:	AA
25. Boot loader:	1.0.0

I used to use a TPlink router until a couple of weeks ago but discontinued it after that developed a separate fault.  I pressed this One Hub into service having had it for a couple of years.  It started up without fault and updated itself to the latest firmware on the 15th March.  Then last week around the 24th March it began presenting these symptoms, rebooting several times on Tuesday afternoon.  When the router is running stably I cannot see any other problems with it.

Here are all the devices normally connected to the router (host names and MACs have been changed).  Note I never connect anything to the USB or Ethernet ports.

2.4 GHz Wireless:	A-iPhone	f8:e9:4e:a0:nn:nn	192.168.1.64
	android-dhcp-9-c0...	c0:10:b1:12:nn:nn	192.168.1.66
	B-iPhone	f4:06:16:8e:nn:nn	192.168.1.68
	B-iPad	d4:61:da:88:nn:nn	192.168.1.70
	A-iPad	c8:f6:50:18:nn:nn	192.168.1.73
5 GHz Wireless:	C-iPad	78:7e:61:e8:nn:nn	192.168.1.67
	WinLaptop	14:4f:8a:3d:nn:nn	192.168.1.69
	Unknown-94-58-cb-...	94:58:cb:db:nn:nn	192.168.1.80
Ethernet:	No devices detected
USB:	No devices detected

Please let me know if there is any further information I can give.

[#2]

Moderators Note

This topic has been released from the spam filter 

[#3]

After 3 and a bit days of reliable work the router has started telling me it's having its reset button pushed, when it is not:

13:20:09, 01 Apr.	(273883.300000) Reset button pressed
13:19:40, 01 Apr.	(273854.700000) Host ​iPad (MAC c8:f6:50:18:44:9e) using IP 192.168.1.73 detected on interface ath10, port -​1
13:19:37, 01 Apr.	ath10: STA c8:f6:50:18:44:9e IEEE 802.11: Client associated
13:18:56, 01 Apr.	(273810.760000) Admin login successful by 192.168.1.69 on HTTP
13:17:05, 01 Apr.	(273699.120000) NTP synchronization failure!
13:16:29, 01 Apr.	OUT: BLOCK [65] First packet is Invalid (Invalid tcp flags for current tcp state: TCP [192.168.1.64]:51243-​>[40.100.174.2]:443 on ppp3)
13:15:26, 01 Apr.	(273600.080000) Reset button pressed
13:13:37, 01 Apr.	(273491.310000) Device disconnected: Hostname: udhcp-​0-​9-​9-​pre-​8c-​57-​9b-​d4-​ab-​23 IP: 192.168.1.65 MAC: 8c:57:9b:d4:ab:23
13:13:34, 01 Apr.	ath10: STA f8:e9:4e:a0:50:be IEEE 802.11: WiFi registration failed
13:13:32, 01 Apr.	ath00: STA 8c:57:9b:d4:ab:23 IEEE 802.11: Client disassociated
13:13:32, 01 Apr.	ath00: STA 8c:57:9b:d4:ab:23 IEEE 802.11: WiFi registration failed
13:11:36, 01 Apr.	(273369.870000) Reset button pressed
13:10:43, 01 Apr.	(273317.110000) Reset button pressed
13:10:20, 01 Apr.	(273294.460000) Reset button pressed
13:10:10, 01 Apr.	(273284.700000) Host ​iPhone (MAC f8:e9:4e:a0:50:be) using IP 192.168.1.64 detected on interface ath00, port -​1
13:10:04, 01 Apr.	ath00: STA f8:e9:4e:a0:50:be IEEE 802.11: Client associated
13:07:55, 01 Apr.	(273149.090000) NTP synchronization failure!

Does anyone else's do this?  I reckon I've got about another hour before the router enters its reboot loop so I'll complete a pre-emptive shutdown and restart shortly to avoid disruption later.

I'd appreciate any input anyone has as both here and the Plusnet Support Twitter account is apparently swamped.

Cheers all.

[#4]

My PlusNet Hub One finally died overnight.  It's caught in the same reboot loop as detailed above but this time a power-cycle didn't resolve it.  I got about 3.5 days uptime and around 22:£0 last night the rebooting started.

I've pressed an aged TP-Link router into service and can tether to my mobile but would appreciate some feedback from any Plusnet staff who might be reading this forum.  I wouldn't normally use a forum or Twitter but have been sent this way by the Plusnet support page.

[#5 · Accepted solution]

Ticket was picked up by Plusnet support.  A new Plusnet router was dispatched and has been working okay for the time being.