Sense losing internet connection

Executive Member

Re: Sense losing internet connection

Pity,missed that testing possibility.One option also would be using  nat at the Cable-router level ie. getting sense operate at it's default home-configuration(no bridging) at the Wan-router port.With

that configuration you can more easily adjust option like dhcp lease times etc which may originally cause the root symptom.Eventually let's hope the sense-developing team could reproduce the issue at the lab-level.

FormerMember
Not applicable

Re: Sense losing internet connection

Yeah that is one thing I could try.

I have now tested with my laptop and different cable between pc/laptop-sense.

The issue occured with laptop after ~20mins.

Submitted a new log via email again.

I think I'll next try what you suggested and then factory reseting sense, which I would rather not do but have to try of course.

I also now switched my pc to different sense lan port to see if that makes any difference.

FormerMember
Not applicable

Re: Sense losing internet connection

And regarding what Ukko asked: Sense is running cool. My WAN router feels more warm even.
Aspirant

Re: Sense losing internet connection

When Sense loses Internet connection, try pinging an IP-address on the Internet.

 

This is what happened to my device- connection was not actually lost, but DNS resolution did not work.

 

2017-09-13 software update seems to have fixed this problem for me.

FormerMember
Not applicable

Re: Sense losing internet connection

Good idea but I actually did that already, just forgot to mention.

So I was pinging 8.8.8.8 (google public dns ip) and when the issue happens, the pinging times out for 1-5 pings.

Former F-Secure Employee

Re: Sense losing internet connection

Hi, I finally got your logs from customer care, sorry about the delay.

 

There's a few findings:

I can see that the link in port4 (WAN) keeps going up and down, which may explain the breakups, the reason for that is unclear though, have you doublechecked that ethernet cable you use in WAN is ok?

Check if you have another cable and try with that and see if the interface stabilizes.

 

[146029.920000] RTL: Link Status Changed - Port4 Link DOWN
[146032.930000] RTL: Link Status Changed - Port4 Link UP
[146534.020000] RTL: Link Status Changed - Port4 Link DOWN
[146537.030000] RTL: Link Status Changed - Port4 Link UP
[146686.060000] RTL: Link Status Changed - Port4 Link DOWN
[146688.070000] RTL: Link Status Changed - Port4 Link UP
[150157.390000] RTL: Link Status Changed - Port4 Link DOWN
[150159.390000] RTL: Link Status Changed - Port4 Link UP
[150491.420000] RTL: Link Status Changed - Port4 Link DOWN
[150494.430000] RTL: Link Status Changed - Port4 Link UP

 

I can also see that the daemon responsible for device identification had crashed in both the logs. It should not affect things, but just in case you could turn off "identify my devices" feature from the app and see if that improves your stability at all.  We'll try to figure out if we can find a cause for that device discovery crash and fix it.

FormerMember
Not applicable

Re: Sense losing internet connection

I'll try those and report back.

FormerMember
Not applicable

Re: Sense losing internet connection

I brought my ethernet cable tester from work and it gave green lights for the cable between wan and sense router. Anyhow I replaced it with brand new one and even tested that also, green lights.

Also tested my pc->sense cable, green lights.

I'll disable the identify my devices feature and test out if the issue is still there.

Also switched the lan port on my wan router to different one.

FormerMember
Not applicable

Re: Sense losing internet connection

Oh well the issue was there again.

Even tried to disable all protection settings from sense, didnt help.

LKo
Aspirant

Re: Sense losing internet connection

I also have similar problem.

DNS issue went away with newest firmware, but I lose Internet constantly.

 

My setup is as follows:

4G Huawei B525 -> <- Ethernet -> <-Generic switch -> <- Ethernet -> <- F-Secure SENSE -> <- 5GHz WLAN -> <- End devices

 

When I lose the connection, first I tried to ping Huawei's IP address:

PING 192.168.8.1 (192.168.8.1): 56 data bytes
Request timeout for icmp_seq 0
64 bytes from 192.168.8.1: icmp_seq=1 ttl=63 time=308.752 ms
Request timeout for icmp_seq 2
Request timeout for icmp_seq 3
^C
--- 192.168.8.1 ping statistics ---
5 packets transmitted, 1 packets received, 80.0% packet loss
round-trip min/avg/max/stddev = 308.752/308.752/308.752/0.000 ms

Then I tried to ping SENSE's IP address:

PING 192.168.71.1 (192.168.71.1): 56 data bytes
Request timeout for icmp_seq 0
Request timeout for icmp_seq 1
Request timeout for icmp_seq 2
Request timeout for icmp_seq 3
Request timeout for icmp_seq 4
Request timeout for icmp_seq 5
64 bytes from 192.168.71.1: icmp_seq=6 ttl=64 time=817.418 ms
Request timeout for icmp_seq 7
Request timeout for icmp_seq 8
Request timeout for icmp_seq 9
Request timeout for icmp_seq 10
Request timeout for icmp_seq 11
Request timeout for icmp_seq 12
64 bytes from 192.168.71.1: icmp_seq=13 ttl=64 time=4.313 ms
Request timeout for icmp_seq 14
Request timeout for icmp_seq 15
64 bytes from 192.168.71.1: icmp_seq=16 ttl=64 time=34.811 ms
64 bytes from 192.168.71.1: icmp_seq=17 ttl=64 time=15.494 ms
64 bytes from 192.168.71.1: icmp_seq=18 ttl=64 time=23.781 ms
Request timeout for icmp_seq 19
Request timeout for icmp_seq 20
Request timeout for icmp_seq 21
64 bytes from 192.168.71.1: icmp_seq=22 ttl=64 time=47.728 ms
Request timeout for icmp_seq 23
Request timeout for icmp_seq 24
64 bytes from 192.168.71.1: icmp_seq=25 ttl=64 time=620.753 ms
Request timeout for icmp_seq 26
64 bytes from 192.168.71.1: icmp_seq=27 ttl=64 time=306.122 ms
64 bytes from 192.168.71.1: icmp_seq=28 ttl=64 time=17.513 ms
64 bytes from 192.168.71.1: icmp_seq=29 ttl=64 time=2.307 ms
^C
--- 192.168.71.1 ping statistics ---
30 packets transmitted, 10 packets received, 66.7% packet loss
round-trip min/avg/max/stddev = 2.307/189.024/817.418/281.876 ms

After changing from SENSEs WiFi to Huaweis one:

PING 192.168.8.1 (192.168.8.1): 56 data bytes
64 bytes from 192.168.8.1: icmp_seq=0 ttl=64 time=1.296 ms
64 bytes from 192.168.8.1: icmp_seq=1 ttl=64 time=0.999 ms
64 bytes from 192.168.8.1: icmp_seq=2 ttl=64 time=1.824 ms
64 bytes from 192.168.8.1: icmp_seq=3 ttl=64 time=1.996 ms
64 bytes from 192.168.8.1: icmp_seq=4 ttl=64 time=2.128 ms
64 bytes from 192.168.8.1: icmp_seq=5 ttl=64 time=3.523 ms
64 bytes from 192.168.8.1: icmp_seq=6 ttl=64 time=1.542 ms
64 bytes from 192.168.8.1: icmp_seq=7 ttl=64 time=1.232 ms
64 bytes from 192.168.8.1: icmp_seq=8 ttl=64 time=1.607 ms
64 bytes from 192.168.8.1: icmp_seq=9 ttl=64 time=2.779 ms
64 bytes from 192.168.8.1: icmp_seq=10 ttl=64 time=3.178 ms
64 bytes from 192.168.8.1: icmp_seq=11 ttl=64 time=1.888 ms
64 bytes from 192.168.8.1: icmp_seq=12 ttl=64 time=1.287 ms
64 bytes from 192.168.8.1: icmp_seq=13 ttl=64 time=2.097 ms
64 bytes from 192.168.8.1: icmp_seq=14 ttl=64 time=83.497 ms
64 bytes from 192.168.8.1: icmp_seq=15 ttl=64 time=73.500 ms
64 bytes from 192.168.8.1: icmp_seq=16 ttl=64 time=100.274 ms
64 bytes from 192.168.8.1: icmp_seq=17 ttl=64 time=122.790 ms
64 bytes from 192.168.8.1: icmp_seq=18 ttl=64 time=3.478 ms
64 bytes from 192.168.8.1: icmp_seq=19 ttl=64 time=1.511 ms
64 bytes from 192.168.8.1: icmp_seq=20 ttl=64 time=2.224 ms
^C
--- 192.168.8.1 ping statistics ---
21 packets transmitted, 21 packets received, 0.0% packet loss
round-trip min/avg/max/stddev = 0.999/19.745/122.790/37.416 ms

So the connection between my laptop and SENSE was already really bad, changing to Huaweis WiFi fixed everything.

 

Thoughts?