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Persistent dropouts

subi211
Dabbler
Posts: 10
Registered: ‎31-08-2014

Persistent dropouts

Hi,
We never experienced the long dropouts others did over the last weekend, but we've had many many frequent small dropouts since Friday.  If, say, we're watching Netflix, it'll hang for a few minutes then continue as if nothing had happened.  Then it'll be fine for anything between a minute and an hour before doing it again.
During these times speedtest.net give us a speed of less than a meg, otherwise it gives around 35 Mb.  However, the "Current line speed" in the members section here gives 38.6 Mb regardless, even during the dropouts.
From what I can see the connection never actually disconnects, it just slows to a crawl.  This also seems unrelated to the time of day - it's happened morning, afternoon, evening and night.  And only since Friday.
Here's my router info, it's a Technicolor TG582n FTTC.  I have a two-box setup for some reasons (actually, can you explain why I have that as well as fixing this problem? Wink )

Quote
WAN Connection
Link Information
Type: Ethernet
MAC address: 9C-97-26-94-E1-A4
Data Transferred(Sent/Received) [MB/GB]:
Internet
Connection Information
Link Status: IPv4 connected
IPv6 disconnected
Uptime: 0 days, 13:03:33
Data Transferred (Sent/Received) [MB/GB]: 140.45 / 6.00
TCP/IPv4 Settings
IPv4 State: Enabled
IPv4 Address: 146.200.165.128
Primary DNS: 212.159.6.10
Secondary DNS: 212.159.6.9
TCP/IPv6 Settings
IPv6 State: Disabled

Also, event logs (wall of text warning):
Aug 31 20:35:26 LOGIN User admin logged in on [HTTP] (from 192.168.1.69)
Info Aug 31 20:35:24 SNTP Synchronised to server: 212.159.13.50
Info Aug 31 19:35:24 SNTP Synchronised to server: 212.159.6.9
Info Aug 31 18:35:24 SNTP Synchronised to server: 212.159.13.50
Warning Aug 31 17:40:14 IDS proto parser : tcp null port (1 of 1) : 113.108.21.16 146.200.165.128 40 51 TCP 12212->0 [S.....] seq 1047694537 ack 0 win 8192
Info Aug 31 17:35:24 SNTP Synchronised to server: 212.159.6.9
Info Aug 31 16:35:24 SNTP Synchronised to server: 212.159.13.50
Info Aug 31 15:35:24 SNTP Synchronised to server: 212.159.13.49
Info Aug 31 14:35:24 SNTP Synchronised to server: 212.159.13.50
Info Aug 31 13:35:45 SNTP Synchronised to server: 212.159.6.9
Warning Aug 31 13:11:55 IDS proto parser : tcp null port (1 of 1) : 123.151.42.61 146.200.165.128 40 49 TCP 12204->0 [S.....] seq 418039745 ack 0 win 8192
Info Aug 31 12:35:45 SNTP Synchronised to server: 212.159.13.49
Info Aug 31 11:35:45 SNTP Synchronised to server: 212.159.6.9
Info Aug 31 10:35:45 SNTP Synchronised to server: 212.159.13.50
Info Aug 31 09:35:45 SNTP Synchronised to server: 212.159.13.49
Info Aug 31 09:05:35 LOGIN wireless station [98:0c:82:e8:b9:6f] can't get authorized.
Info Aug 31 08:35:45 SNTP Synchronised to server: 212.159.6.9
Error Aug 31 06:35:52 [ANTI_SPOOFD] (err) llist_getobject_at for ENV.ANTI_SPOOFD's value failed
Info Aug 31 06:35:45 SNTP Synchronised to server: 212.159.13.50
Error Aug 31 06:35:45 SNTP Systemtime update: time setting 00:00:55 > new time setting: 06:35:45
4 REPLIES
Acassim
Grafter
Posts: 1,075
Thanks: 1
Registered: ‎11-06-2007

Re: Persistent dropouts

Hi subi211,
Sorry to hear that you've been seeing connection problems over the weekend. Can I check if these are still ongoing? We did have some service outages on Friday which saw customers connections dropping and the coming back up before dropping again.
In addition to this, you mentioned slowing of the connection so if this is still ongoing, what does a speed test show you when you notice the speeds drop for Netflix?
The reason for the two boxes is that BT provide a Fibre modem with the connection of the service but this doesn't provide you with multiple ethernet ports or a wireless service so Plusnet provide a router which manages the login and also offers the additional connections.
subi211
Dabbler
Posts: 10
Registered: ‎31-08-2014

Re: Persistent dropouts

It's still going on.  The "Current line speed" tool gives around 38 all the time, but speedtest.net gives less than 1 Mb during the slowdowns and ~35 Mb during normal usage.
Acassim
Grafter
Posts: 1,075
Thanks: 1
Registered: ‎11-06-2007

Re: Persistent dropouts

Thanks for confirming subi211,
Just to tick off some further causes, can you confirm that you're testing this via a wired connection and the device you're streaming from is also connected via a wired connection?
If possible, would you be able to run this speed test here both when the service is fine and then when you notice the drops? This test holds the details for ourselves and BT to use when we start running faults checks/tests so will be a great help if we have to go down that route.
subi211
Dabbler
Posts: 10
Registered: ‎31-08-2014

Re: Persistent dropouts

Took a while to start happening this evening, but it did.  Wink
The streaming device is a Chromecast (using the onboard Netflix app), and I was using a wireless laptop the same distance as it from the router to test last night.  Both showed massive speed drops.
However, testing tonight on a wired connection showed no drop in line speed while the Chromecast was buffering and the laptop was showing a slowdown (OOKLA 21ms/36.67Mbps/8.59Mbps,
BT 32.5ms/36.78Mbps/8.25Mbps).  That's fairly obviously implying that the wireless router is at fault not the line, and that it was presumably a coincidence that these problems started when the big outage occurred over the weekend.
The wireless router had two laptops (one sleeping), the Chromecast and a couple of Android phones attached to it.  That doesn't sound like too much to me, is there anything I should be trying with the router?  It seems odd that this has suddenly started happening after months of perfect behaviour.  Has there been an over-the-air update?