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New FTTC install, Modem Lockup and issues

noz1380
Newbie
Posts: 5
Registered: 06-03-2009

New FTTC install, Modem Lockup and issues

A couple of weeks back I decided to change over from ADSL to FTTC.  Not expecting a great deal of improvement but with a £5 saving I thought what could it hurt.
I think we are the last set of houses from the green cab, and so understood that speeds won’t be topping out.
On ADSL I was achieving 6.5meg DL & 0.7-1.0meg UL.  When I inquire about FTTC I was estimated at 15meg DL & 2meg UL.
After the install and another engineers visit I average 8.5meg DL & 0.5meg UL.
My setup is the Openreach modem (HG612?) and a Netgear WNDR3700, all setup spot on!
Now for my issues, first I would have expected better speeds, but I understand that the speed was only an estimate.  Next problem is when I have been connected for 5-6 hours the connection is locked up.  The modem still shows all green lights, but the internet connection dialog box in the router states a problem (no connection).  I re-boot the router but still the same, I have to reboot the modem each time.
One problem I have notice is apparent DOS attacks.  Although I’m not sure if these are pucker as it’s not intense attacks as I’d expect, perhaps 1 every 3 seconds (Please see below.)
[DoS Attack: RST Scan] from source: 68.56.10.112, port 61002, Monday, March 03, 2014 20:56:28
[DoS Attack: RST Scan] from source: 81.193.36.8, port 15156, Monday, March 03, 2014 20:56:21
[DoS Attack: RST Scan] from source: 76.5.68.65, port 19493, Monday, March 03, 2014 20:56:20
[DoS Attack: RST Scan] from source: 79.54.105.6, port 21051, Monday, March 03, 2014 20:56:17
[DoS Attack: RST Scan] from source: 76.5.68.65, port 19242, Monday, March 03, 2014 20:56:12
[DoS Attack: RST Scan] from source: 78.60.207.40, port 4676, Monday, March 03, 2014 20:56:08
[DoS Attack: RST Scan] from source: 93.42.89.16, port 50939, Monday, March 03, 2014 20:55:56
[DoS Attack: RST Scan] from source: 98.24.124.246, port 62443, Monday, March 03, 2014 20:55:54
[DoS Attack: RST Scan] from source: 93.42.89.16, port 50939, Monday, March 03, 2014 20:55:48
[DoS Attack: RST Scan] from source: 78.185.111.37, port 16143, Monday, March 03, 2014 20:55:37
[DoS Attack: RST Scan] from source: 82.48.145.169, port 26535, Monday, March 03, 2014 20:55:30
[DoS Attack: RST Scan] from source: 199.16.156.102, port 443, Monday, March 03, 2014 20:55:15
[DoS Attack: RST Scan] from source: 84.215.91.91, port 14675, Monday, March 03, 2014 20:55:03
[DoS Attack: RST Scan] from source: 190.213.100.117, port 33449, Monday, March 03, 2014 20:54:55
[DoS Attack: RST Scan] from source: 84.215.91.91, port 14675, Monday, March 03, 2014 20:54:55
[DoS Attack: RST Scan] from source: 199.16.156.102, port 443, Monday, March 03, 2014 20:54:21
[DoS Attack: RST Scan] from source: 98.24.124.246, port 62091, Monday, March 03, 2014 20:54:18
[DoS Attack: RST Scan] from source: 5.145.37.126, port 52334, Monday, March 03, 2014 20:54:15
[DoS Attack: RST Scan] from source: 95.83.253.177, port 9100, Monday, March 03, 2014 20:54:12
[DoS Attack: RST Scan] from source: 83.226.237.243, port 20671, Monday, March 03, 2014 20:53:28
[DoS Attack: ACK Scan] from source: 37.136.249.239, port 18798, Monday, March 03, 2014 20:53:24
[DoS Attack: RST Scan] from source: 85.242.226.166, port 15757, Monday, March 03, 2014 20:53:14
[DoS Attack: RST Scan] from source: 74.125.132.101, port 443, Monday, March 03, 2014 20:53:12
[DoS Attack: RST Scan] from source: 199.16.156.102, port 443, Monday, March 03, 2014 20:53:04
[DoS Attack: RST Scan] from source: 90.178.87.175, port 13332, Monday, March 03, 2014 20:52:54
[DoS Attack: RST Scan] from source: 50.71.150.155, port 13507, Monday, March 03, 2014 20:52:35
[DoS Attack: RST Scan] from source: 83.108.144.159, port 18030, Monday, March 03, 2014 20:52:34
[DoS Attack: RST Scan] from source: 199.16.156.102, port 443, Monday, March 03, 2014 20:51:39
[DoS Attack: SYN/ACK Scan] from source: 68.37.228.180, port 49527, Monday, March 03, 2014 20:51:35
[DoS Attack: RST Scan] from source: 85.242.226.166, port 15260, Monday, March 03, 2014 20:51:29
[DoS Attack: RST Scan] from source: 84.209.45.60, port 25849, Monday, March 03, 2014 20:51:24
[DoS Attack: RST Scan] from source: 187.63.193.45, port 55889, Monday, March 03, 2014 20:51:14
[DoS Attack: RST Scan] from source: 84.209.45.60, port 25849, Monday, March 03, 2014 20:51:14
[UPnP set event: add_nat_rule] from source 42.0.0.43, Monday, March 03, 2014 20:51:14
[DoS Attack: RST Scan] from source: 181.165.169.67, port 57711, Monday, March 03, 2014 20:51:05
[DoS Attack: SYN/ACK Scan] from source: 68.37.228.180, port 49527, Monday, March 03, 2014 20:51:03
[DoS Attack: SYN/ACK Scan] from source: 222.164.103.113, port 62348, Monday, March 03, 2014 20:51:02
[UPnP set event: del_nat_rule] from source 42.0.0.43, Monday, March 03, 2014 20:50:55
[DoS Attack: RST Scan] from source: 90.178.87.175, port 13013, Monday, March 03, 2014 20:50:54
[DoS Attack: RST Scan] from source: 76.5.68.65, port 10411, Monday, March 03, 2014 20:50:50
[DoS Attack: RST Scan] from source: 199.16.156.102, port 443, Monday, March 03, 2014 20:50:45
[DoS Attack: RST Scan] from source: 71.233.154.65, port 15653, Monday, March 03, 2014 20:50:45
[DoS Attack: RST Scan] from source: 77.31.17.118, port 60027, Monday, March 03, 2014 20:50:45
[DoS Attack: RST Scan] from source: 83.226.237.243, port 20430, Monday, March 03, 2014 20:50:45
[DoS Attack: RST Scan] from source: 76.5.68.65, port 10192, Monday, March 03, 2014 20:50:42
[Log Cleared] Monday, March 03, 2014 20:50:40
I’m not sure what I’m missing, if there is anything I can do.  Should I worry about these Dos attacks?Huh
Any advice would be super.  Thank you.
6 REPLIES
Plusnet Help Team
Plusnet Help Team
Posts: 13,492
Thanks: 248
Fixes: 68
Registered: 27-04-2007

Re: New FTTC install, Modem Lockup and issues

I agree the the firewall logs would be much more frequent and in greater numbers if it were an actual DOS attack. Are these still being recorded?
I've just checked your account and can't see any obvious causes for a drop in speeds, does this seem to vary at different times of day?
If this post resolved your issue please click the 'This fixed my problem' button
 Adam Walker
 Plusnet Help Team
noz1380
Newbie
Posts: 5
Registered: 06-03-2009

Re: New FTTC install, Modem Lockup and issues

I'm not too sure about the speeds and times ect.  All I know is that after a certain period its all locked up.
Not too fussed about the speed atm, just the modem locking up.
Although next door have just had BT Infinity installed and there line IP is 38.71meg DL & 2meg UL where as ours is 9.6meg & 2meg UL.
noz1380
Newbie
Posts: 5
Registered: 06-03-2009

Re: New FTTC install, Modem Lockup and issues

I have written off the DOS attacks, I think the router was being overly sensitive.
I still have the issue of very poor speed.
Again my neighbor has checked his and his line IP is 35+mb/s, mine is 9.5mb/s.
Can you please advise if Plusnet is only allocating me this line IP, or if I have a fault limiting my speeds?
Than you.
Plusnet Staff
Plusnet Staff
Posts: 6,346
Thanks: 31
Fixes: 5
Registered: 26-11-2011

Re: New FTTC install, Modem Lockup and issues

At present, your line is currently banded: WBC 7M - 14M No delay (INP 0) 6dB Downstream, UC No delay (INP 0) 6dB Upstream.
This means that your line will not connect any higher than 14336kbps (yours is: 14333kpbs). If your line remains stable as it is now for the next few days, this banding will be automatically be removed and your speeds should increase.
Chris Pettitt
Cloud Environments Engineer
noz1380
Newbie
Posts: 5
Registered: 06-03-2009

Re: New FTTC install, Modem Lockup and issues

Chris, thank you for the info.
Was I banded to restrict the line speed?  Was this due to the technical fault on my line that wsa sorted a few weeks back?
Thank you for your help!
Plusnet Staff
Plusnet Staff
Posts: 6,346
Thanks: 31
Fixes: 5
Registered: 26-11-2011

Re: New FTTC install, Modem Lockup and issues

The Line Banding was probably due to a few disconnections have you've had historically, but depending on it's severity, can remove itself, such as this case.
The banding restricts your speeds ever so slightly to try and keep the line stable, it removes the banding bit by bit to find the balance of good speeds and good stability.
Chris Pettitt
Cloud Environments Engineer