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Netduma R2 sluggish performance after days


Troopergr
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Greetings all,

I have observed that after a few days, wifi performance on some devices starts to drop and I have to restart it to work.

Also this happens sometimes on the LAN pcs that I noticed.

I am using the latest firmware 3.0.205, and I don't have enabled anything.

I am behind a speedport plus vdsl modem/router which I have put in DMZ mode with only netduma connected. 

It seemed to be working ok apart from the occasional resets I had to do on both netduma and speedport.

Some packets seem to be dropping constantly and I dont  know why. Here is a part of my log. If someone can help. I am watching a stream on twich and it freezes and resumes every few seconds.

Thu May  6 09:30:01 2021 kern.info kernel: [43224.213968] ash (18800): drop_caches: 3
Thu May  6 09:30:01 2021 cron.err crond[1405]: USER root pid 18800 cmd echo 3 > /proc/sys/vm/drop_caches
Thu May  6 09:29:53 2021 daemon.err miniupnpd[2496]: try_sendto failed to send 12 packets
Thu May  6 09:29:23 2021 daemon.err miniupnpd[2496]: try_sendto failed to send 12 packets
Thu May  6 09:28:53 2021 daemon.err miniupnpd[2496]: try_sendto failed to send 12 packets
Thu May  6 09:28:48 2021 daemon.warn odhcpd[1371]: A default route is present but there is no public prefix on lan thus we don't announce a default route!
Thu May  6 09:28:23 2021 daemon.err miniupnpd[2496]: try_sendto failed to send 12 packets
Thu May  6 09:27:53 2021 daemon.err miniupnpd[2496]: try_sendto failed to send 12 packets
Thu May  6 09:27:23 2021 daemon.err miniupnpd[2496]: try_sendto failed to send 12 packets
Thu May  6 09:26:53 2021 daemon.err miniupnpd[2496]: try_sendto failed to send 12 packets
Thu May  6 09:26:23 2021 daemon.err miniupnpd[2496]: try_sendto failed to send 12 packets
Thu May  6 09:25:53 2021 daemon.err miniupnpd[2496]: try_sendto failed to send 12 packets
Thu May  6 09:25:23 2021 daemon.err miniupnpd[2496]: try_sendto failed to send 12 packets
Thu May  6 09:25:00 2021 kern.info kernel: [42924.155107] ash (11505): drop_caches: 3
Thu May  6 09:25:00 2021 cron.err crond[1405]: USER root pid 11505 cmd echo 3 > /proc/sys/vm/drop_caches
Thu May  6 09:24:53 2021 daemon.err miniupnpd[2496]: try_sendto failed to send 12 packets
Thu May  6 09:24:23 2021 daemon.err miniupnpd[2496]: try_sendto failed to send 12 packets

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Welcome to the forum!

What speeds do you expect from the ISP and what are you actually getting through the R2? Are they similar or is the R2 seeing dratically less?

Do you have the two Wi-Fi networks seperated or are they Mirrored? You can check this in Network Settings -> LAN -> Wi-Fi.

 

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46 minutes ago, Netduma Liam said:

Welcome to the forum!

What speeds do you expect from the ISP and what are you actually getting through the R2? Are they similar or is the R2 seeing dratically less?

Do you have the two Wi-Fi networks seperated or are they Mirrored? You can check this in Network Settings -> LAN -> Wi-Fi.

 

My line is 220/22 and I am getting good speeds, but the problem is that after some use I get strange problems, like netflix not connecting on one device, or a website will not open on another device etc. When I notice these things, I just reboot netduma and everything is ok again.

 

Settings are mirrored on wifi.

Those packets that are being dropped, is it normal or is it something I need to do ? If I ping 8.8.8.8 for example it will ping at 60ms, but it might go up to 120-200 for a click or 2 depending on whats happening. 

 

Thanks for the reply

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1 hour ago, Netduma Fraser said:

Dropping packets is normal but not usually that frequently, have you set the DMZ on the R2 or done any port forwarding, disabled UPnP at all? 

I have set the DMZ on my modem/router so it sends everything to the netduma. I have not configured any DMZ on netduma.

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Might be dropping packets when devices switch from 2.4 to 5GHz and vice versa. Disable Mirror mode, give 2.4/5GHz different names then apply and connect manually to 2.4 or 5 and see if the issues and dropped packets is resolved.

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16 minutes ago, Netduma Fraser said:

Might be dropping packets when devices switch from 2.4 to 5GHz and vice versa. Disable Mirror mode, give 2.4/5GHz different names then apply and connect manually to 2.4 or 5 and see if the issues and dropped packets is resolved.

dropped packets seem to come from my pc which is connected via lan.

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Does it specify this in the log or are you observing that through pings etc? If you open command prompt and type ping 8.8.8.8 -t and then stop it after a little while, can you post a screenshot of the results?

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13 hours ago, Netduma Fraser said:

Does it specify this in the log or are you observing that through pings etc? If you open command prompt and type ping 8.8.8.8 -t and then stop it after a little while, can you post a screenshot of the results?

It is on the logs:

Fri May  7 10:27:24 2021 daemon.err miniupnpd[2496]: try_sendto failed to send 12 packets
Fri May  7 10:26:54 2021 daemon.err miniupnpd[2496]: try_sendto failed to send 12 packets
Fri May  7 10:26:24 2021 daemon.err miniupnpd[2496]: try_sendto failed to send 12 packets
Fri May  7 10:25:54 2021 daemon.err miniupnpd[2496]: try_sendto failed to send 12 packets
Fri May  7 10:25:24 2021 daemon.err miniupnpd[2496]: try_sendto failed to send 12 packets
Fri May  7 10:25:00 2021 kern.info kernel: [132923.628947] ash (442): drop_caches: 3
Fri May  7 10:25:00 2021 cron.err crond[1405]: USER root pid 442 cmd echo 3 > /proc/sys/vm/drop_caches
Fri May  7 10:24:54 2021 daemon.err miniupnpd[2496]: try_sendto failed to send 12 packets
Fri May  7 10:24:24 2021 daemon.err miniupnpd[2496]: try_sendto failed to send 12 packets
Fri May  7 10:23:54 2021 daemon.err miniupnpd[2496]: try_sendto failed to send 12 packets

 

Also when I ping 8.8.8.8 it will be steady but will jump to higher ms at some pings.

 

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6 hours ago, Netduma Liam said:

OK thanks, could you perhaps provide a screenshot of the ping result?

Reply from 8.8.8.8: bytes=32 time=49ms TTL=115
Reply from 8.8.8.8: bytes=32 time=45ms TTL=115
Reply from 8.8.8.8: bytes=32 time=51ms TTL=115
Reply from 8.8.8.8: bytes=32 time=48ms TTL=115
Reply from 8.8.8.8: bytes=32 time=45ms TTL=115
Reply from 8.8.8.8: bytes=32 time=47ms TTL=115
Reply from 8.8.8.8: bytes=32 time=46ms TTL=115
Reply from 8.8.8.8: bytes=32 time=51ms TTL=115
Reply from 8.8.8.8: bytes=32 time=58ms TTL=115
Reply from 8.8.8.8: bytes=32 time=50ms TTL=115
Reply from 8.8.8.8: bytes=32 time=50ms TTL=115
Reply from 8.8.8.8: bytes=32 time=48ms TTL=115
Reply from 8.8.8.8: bytes=32 time=48ms TTL=115
Reply from 8.8.8.8: bytes=32 time=49ms TTL=115
Reply from 8.8.8.8: bytes=32 time=48ms TTL=115
Reply from 8.8.8.8: bytes=32 time=45ms TTL=115
Reply from 8.8.8.8: bytes=32 time=48ms TTL=115
Reply from 8.8.8.8: bytes=32 time=62ms TTL=115
Reply from 8.8.8.8: bytes=32 time=52ms TTL=115
Reply from 8.8.8.8: bytes=32 time=47ms TTL=115
Reply from 8.8.8.8: bytes=32 time=69ms TTL=115
Reply from 8.8.8.8: bytes=32 time=62ms TTL=115
Reply from 8.8.8.8: bytes=32 time=57ms TTL=115
Reply from 8.8.8.8: bytes=32 time=53ms TTL=115
Reply from 8.8.8.8: bytes=32 time=55ms TTL=115
Reply from 8.8.8.8: bytes=32 time=52ms TTL=115
Reply from 8.8.8.8: bytes=32 time=51ms TTL=115
Reply from 8.8.8.8: bytes=32 time=60ms TTL=115
Reply from 8.8.8.8: bytes=32 time=58ms TTL=115
Reply from 8.8.8.8: bytes=32 time=51ms TTL=115
Reply from 8.8.8.8: bytes=32 time=58ms TTL=115
Reply from 8.8.8.8: bytes=32 time=50ms TTL=115
Reply from 8.8.8.8: bytes=32 time=47ms TTL=115
Reply from 8.8.8.8: bytes=32 time=49ms TTL=115
Reply from 8.8.8.8: bytes=32 time=46ms TTL=115
Reply from 8.8.8.8: bytes=32 time=47ms TTL=115
Reply from 8.8.8.8: bytes=32 time=48ms TTL=115
Reply from 8.8.8.8: bytes=32 time=47ms TTL=115
Reply from 8.8.8.8: bytes=32 time=58ms TTL=115
Reply from 8.8.8.8: bytes=32 time=46ms TTL=115
Reply from 8.8.8.8: bytes=32 time=46ms TTL=115
Reply from 8.8.8.8: bytes=32 time=50ms TTL=115
Reply from 8.8.8.8: bytes=32 time=52ms TTL=115
Reply from 8.8.8.8: bytes=32 time=46ms TTL=115
Reply from 8.8.8.8: bytes=32 time=47ms TTL=115
Reply from 8.8.8.8: bytes=32 time=45ms TTL=115
Reply from 8.8.8.8: bytes=32 time=51ms TTL=115
Reply from 8.8.8.8: bytes=32 time=46ms TTL=115
Reply from 8.8.8.8: bytes=32 time=51ms TTL=115
Reply from 8.8.8.8: bytes=32 time=62ms TTL=115
Reply from 8.8.8.8: bytes=32 time=51ms TTL=115
Reply from 8.8.8.8: bytes=32 time=62ms TTL=115
Reply from 8.8.8.8: bytes=32 time=48ms TTL=115
Reply from 8.8.8.8: bytes=32 time=48ms TTL=115
Reply from 8.8.8.8: bytes=32 time=45ms TTL=115
Reply from 8.8.8.8: bytes=32 time=54ms TTL=115
Reply from 8.8.8.8: bytes=32 time=48ms TTL=115
Reply from 8.8.8.8: bytes=32 time=48ms TTL=115
Reply from 8.8.8.8: bytes=32 time=62ms TTL=115
Reply from 8.8.8.8: bytes=32 time=50ms TTL=115
Reply from 8.8.8.8: bytes=32 time=46ms TTL=115
Reply from 8.8.8.8: bytes=32 time=50ms TTL=115
Reply from 8.8.8.8: bytes=32 time=47ms TTL=115
Reply from 8.8.8.8: bytes=32 time=47ms TTL=115
Reply from 8.8.8.8: bytes=32 time=47ms TTL=115
Reply from 8.8.8.8: bytes=32 time=45ms TTL=115
Reply from 8.8.8.8: bytes=32 time=48ms TTL=115

Ping statistics for 8.8.8.8:
    Packets: Sent = 115, Received = 115, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
    Minimum = 45ms, Maximum = 82ms, Average = 50ms

 

And during that ping:

Fri May  7 22:34:09 2021 daemon.err miniupnpd[2496]: try_sendto failed to send 12 packets
Fri May  7 22:33:39 2021 daemon.err miniupnpd[2496]: try_sendto failed to send 12 packets
Fri May  7 22:33:09 2021 daemon.err miniupnpd[2496]: try_sendto failed to send 12 packets
Fri May  7 22:32:39 2021 daemon.err miniupnpd[2496]: try_sendto failed to send 12 packets
Fri May  7 22:32:09 2021 daemon.err miniupnpd[2496]: try_sendto failed to send 12 packets
Fri May  7 22:31:39 2021 daemon.err miniupnpd[2496]: try_sendto failed to send 12 packets
Fri May  7 22:31:09 2021 daemon.err miniupnpd[2496]: try_sendto failed to send 12 packets
Fri May  7 22:30:39 2021 daemon.err miniupnpd[2496]: try_sendto failed to send 12 packets
 

If I could only find out why is it dropping those 12 packets.

 

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11 hours ago, Netduma Fraser said:

Could you change the ethernet cable connecting the router to the modem please and see if the ping is still as high?

I already did, and it seems to be much better. Will keep monitoring it over the next couple of days and get back with results. Many thanks for the help!

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