I ha e exactly this problem too whee latency is high causing me to drop out of conference calls which is a big issue when I am working from home. M5 x 3 connected to plusnet router all good until firmware upgrade to 1.42 from 1.3.1 and wondering if this caused the latency was great before but can't use this currently.

if I connect to plusnet Wi-Fi all good any help or advice would be great.

I have upgraded to firmware 1.4.2 now and immediately after I tried a ping test.. same result as before. 

Is something being done to address this issue with M5? This mesh system isn't cheap, and it appears to be affecting many users. 

Is there any update on this issue ?

@Kevin_Z can we either fix this issue or enable a rollback of firmware to the 1.3.x release which worked well ?

Thanks

@Kevin_Z 

Any recent updates with these known issues... I purchased (2) Deco M5 Kits within the last few months one installed at home and then other at work office. BOTH expeierence exactly what users are seeing. It currently is 3/23/2020 and both my units show FW Version 1.4.2 Build 20200116 Rel. 46064. Both of mine are set in ROUTER mode also. Very frustrating when spending this kind of money and the devices work great, until handful of times a day you notice this hang. 

I can provide my setup details as well if needed but looks like this is a fairly common issue. 

Thanks for everyone's help!

Same issue here with the P7, I guess I'm going to rerun this and get a powerfull router and 2 repeaters, this is just too much. Sure, it will not be TP-Link. 

I had the same in 2x Deco M5.

Every 10 ping was ~2000.

It seems to me that the system tested, which Deco has a faster response.

It helped me turn off Mesh technology  (without checking which router is closer) for this computer.

@Knut-Magne 

Same problem here:

(this was taken just now, via wifi laptop -> Deco - wifi backhail - > Deco - cat6 wired ethernet backhaul - Deco -> ISP CPE.)

boy@MacBook-Pro-van-Boy ~ % traceroute 8.8.8.8

traceroute to 8.8.8.8 (8.8.8.8), 64 hops max, 52 byte packets

 1  192.168.1.1 (192.168.1.1)  6.013 ms  4.264 ms  4.479 ms = Main Deco

 2  192.168.0.1 (192.168.0.1)  7.211 ms  8.245 ms  6.910 ms = ISP CPE

^C

boy@MacBook-Pro-van-Boy ~ % ping 192.168.0.1

PING 192.168.0.1 (192.168.0.1): 56 data bytes

64 bytes from 192.168.0.1: icmp_seq=0 ttl=63 time=10.095 ms

64 bytes from 192.168.0.1: icmp_seq=1 ttl=63 time=8.654 ms

64 bytes from 192.168.0.1: icmp_seq=2 ttl=63 time=7.795 ms

64 bytes from 192.168.0.1: icmp_seq=3 ttl=63 time=6.776 ms

64 bytes from 192.168.0.1: icmp_seq=4 ttl=63 time=9.152 ms

64 bytes from 192.168.0.1: icmp_seq=5 ttl=63 time=9.010 ms

64 bytes from 192.168.0.1: icmp_seq=6 ttl=63 time=6.170 ms

64 bytes from 192.168.0.1: icmp_seq=7 ttl=63 time=6.446 ms

64 bytes from 192.168.0.1: icmp_seq=8 ttl=63 time=135.253 ms

64 bytes from 192.168.0.1: icmp_seq=9 ttl=63 time=6.673 ms

64 bytes from 192.168.0.1: icmp_seq=10 ttl=63 time=90.121 ms

64 bytes from 192.168.0.1: icmp_seq=11 ttl=63 time=111.301 ms

64 bytes from 192.168.0.1: icmp_seq=12 ttl=63 time=9.261 ms

64 bytes from 192.168.0.1: icmp_seq=13 ttl=63 time=7.039 ms

64 bytes from 192.168.0.1: icmp_seq=14 ttl=63 time=8.479 ms

64 bytes from 192.168.0.1: icmp_seq=15 ttl=63 time=7.844 ms

64 bytes from 192.168.0.1: icmp_seq=16 ttl=63 time=9.302 ms

^C

--- 192.168.0.1 ping statistics ---

17 packets transmitted, 17 packets received, 0.0% packet loss

round-trip min/avg/max/stddev = 6.170/26.434/135.253/40.477 ms

boy@MacBook-Pro-van-Boy ~ % ping 192.168.1.1

PING 192.168.1.1 (192.168.1.1): 56 data bytes

64 bytes from 192.168.1.1: icmp_seq=0 ttl=64 time=6.665 ms

64 bytes from 192.168.1.1: icmp_seq=1 ttl=64 time=8.318 ms

64 bytes from 192.168.1.1: icmp_seq=2 ttl=64 time=6.501 ms

64 bytes from 192.168.1.1: icmp_seq=3 ttl=64 time=3.777 ms

64 bytes from 192.168.1.1: icmp_seq=4 ttl=64 time=5.159 ms

64 bytes from 192.168.1.1: icmp_seq=5 ttl=64 time=5.664 ms

64 bytes from 192.168.1.1: icmp_seq=6 ttl=64 time=8.416 ms

64 bytes from 192.168.1.1: icmp_seq=7 ttl=64 time=4.803 ms

64 bytes from 192.168.1.1: icmp_seq=8 ttl=64 time=5.318 ms

64 bytes from 192.168.1.1: icmp_seq=9 ttl=64 time=4.693 ms

64 bytes from 192.168.1.1: icmp_seq=10 ttl=64 time=5.767 ms

64 bytes from 192.168.1.1: icmp_seq=11 ttl=64 time=5.250 ms

64 bytes from 192.168.1.1: icmp_seq=12 ttl=64 time=5.186 ms

64 bytes from 192.168.1.1: icmp_seq=13 ttl=64 time=4.729 ms

64 bytes from 192.168.1.1: icmp_seq=14 ttl=64 time=5.287 ms

64 bytes from 192.168.1.1: icmp_seq=15 ttl=64 time=4.275 ms

64 bytes from 192.168.1.1: icmp_seq=16 ttl=64 time=3.951 ms

64 bytes from 192.168.1.1: icmp_seq=17 ttl=64 time=3.908 ms

64 bytes from 192.168.1.1: icmp_seq=18 ttl=64 time=4.506 ms

64 bytes from 192.168.1.1: icmp_seq=19 ttl=64 time=5.909 ms

64 bytes from 192.168.1.1: icmp_seq=20 ttl=64 time=5.550 ms

64 bytes from 192.168.1.1: icmp_seq=21 ttl=64 time=4.330 ms

64 bytes from 192.168.1.1: icmp_seq=22 ttl=64 time=7.638 ms

64 bytes from 192.168.1.1: icmp_seq=23 ttl=64 time=5.306 ms

64 bytes from 192.168.1.1: icmp_seq=24 ttl=64 time=6.732 ms

64 bytes from 192.168.1.1: icmp_seq=25 ttl=64 time=6.277 ms

64 bytes from 192.168.1.1: icmp_seq=26 ttl=64 time=5.892 ms

64 bytes from 192.168.1.1: icmp_seq=27 ttl=64 time=11.413 ms

64 bytes from 192.168.1.1: icmp_seq=28 ttl=64 time=5.890 ms

64 bytes from 192.168.1.1: icmp_seq=29 ttl=64 time=5.316 ms

64 bytes from 192.168.1.1: icmp_seq=30 ttl=64 time=7.689 ms

64 bytes from 192.168.1.1: icmp_seq=31 ttl=64 time=5.831 ms

64 bytes from 192.168.1.1: icmp_seq=32 ttl=64 time=6.574 ms

64 bytes from 192.168.1.1: icmp_seq=33 ttl=64 time=3.502 ms

64 bytes from 192.168.1.1: icmp_seq=34 ttl=64 time=7.333 ms

64 bytes from 192.168.1.1: icmp_seq=35 ttl=64 time=4.848 ms

64 bytes from 192.168.1.1: icmp_seq=36 ttl=64 time=3.888 ms

64 bytes from 192.168.1.1: icmp_seq=37 ttl=64 time=120.325 ms

64 bytes from 192.168.1.1: icmp_seq=38 ttl=64 time=124.846 ms

64 bytes from 192.168.1.1: icmp_seq=39 ttl=64 time=5.582 ms

64 bytes from 192.168.1.1: icmp_seq=40 ttl=64 time=76.638 ms

64 bytes from 192.168.1.1: icmp_seq=41 ttl=64 time=5.926 ms

64 bytes from 192.168.1.1: icmp_seq=42 ttl=64 time=4.720 ms

^C

--- 192.168.1.1 ping statistics ---

43 packets transmitted, 43 packets received, 0.0% packet loss

round-trip min/avg/max/stddev = 3.502/12.794/124.846/26.542 ms

Constantly random spikes to 150+ ms with no other big bandwidth consumers in the network.

Even when connecting a super short cable directly to the main deco gives me this problem but like 10 ms less only... still horrible. (not above ping test)

It's almost like the WiFi is fine...but the (main) deco takes too long to proces the packets every now and then.

I'm using the M9 Plus by the way.

Unless the Deco is seriously giving less prio to ICMP packets but yea it's not like this device is for advanced users so no documentation about that to be found... : [

There wa s a firmware update today (1.4.2) - but the issue remains. 

It appears to be occuring almost always after 10 pings, with one exception where the ping timed out.