Hi, on the 26th of Oct, I was alerted to the fact that my network backups had failed to go to my email account.
On further investigation I discover that my gateway, after over 200 faultless days has started to reboot itself.
Weirdly a ROS5.17 npk package that was sitting idle in the files directory had also unpacked itself and was now the current OS.
To that point it had ros5.11 in the machine ( why bother to upgrade if all is working ok!). However a copy of 5.17 was put in the directory ready for the time that I had to work a night shift.
In the last 3 years the router has run flawlessly.. Never a reboot. (unless I did an upgrade)
The next evening the router started to reboot around the same times (+/- 1hour).. But only 4 times and luckily throughout the night.
The next day, thinking that maybe the local electricity supply had “glitches” and well maybe the batteries were flat on my UPS, I decided to install another (NEW) UPS.
Still the same… Yesterday the router rebooted in the middle of the day, (cant have that!!)
Last night, loaded ros5.20.
Now the router has rebooted 4 times since 1am, and for no apparent reason.
Yesterday evening, the traffic stats were very low, nobody was downloading p2p.
It happened again twice in the past night.. Got up at 5am and downgraded to ros4.17.
Tip for anyone else… Dont forget ros4.17 didn’t include the all mode wireless package (nv2 etc is extra package)… ( I remembered that! ) But forgot 4.17 didnt have PCQ with bursts.
Also note: Essential to downgrade firmware that co-exists with 4.17 else ALL PCQ queues stall and the queue tree no longer functions.
But I am now really hacked of, this is the first time I have been on the end of Router OS mysterious crashes.
Over 200 days then Bam, suddenly it starts happening. I am now really sympathetic to others.
I now have a quad core 2.3Ghz poweredge server almost ready to replace it, but now I am reading that other X86 users are having problems with all variants of Ros5.XX.
Is there any reliable ROS that has PCQ with bursts for the RB4xx Ah series or for an X86 machine.
I would check first the electrolytic capacitors on the board, it’s possible some of them are leaking and causing strange effects.
I know it is unusual but it is possible.
v 5.11 is very stable.
p.s. Also, check real half/full duplex status on both sides of ethernet cables connected to the unit - low throughput can be caused by half/full duplex mismatch.