Slow speeds, high packetloss

[janipewter]

Anyone else having this? Speeds are really slow, and packetloss is huge. Did a speedtest and the downstream was fine, but the upstream was only 24kbps!

Here are the logs from the last time I booted my surfboard:

060307182122 4-Error X501.35 Unit Update Failed.
060307182122 7-Information F502.1 Bridge Forwarding Enabled.
060307182121 4-Error X501.28 Unit Update - Not updating. This image is not for this platform.
060307182121 7-Information F502.2 Bridge Forwarding Disabled.
060307182121 7-Information X500.0 Attempting Unit Update
060307182116 7-Information F502.1 Bridge Forwarding Enabled.
060307182116 7-Information F502.3 Bridge Learning Enabled.
060307182116 7-Information B518.0 Baseline Privacy is skipped
060307182116 6-Notice D501.10 TFTP, Unknown SNMP 30 82 00 11 06 0C 2B 06 01 04 01 8B 15 4D 01 03
060307182116 7-Information I500.0 Registration Completed
060307182116 7-Information I0.0 REG-RSP Registration Response
060307182116 7-Information I0.0 REG-REQ Registration Request
060307182116 7-Information D509.0 Retrieved TFTP Config File SUCCESS
060307182116 7-Information I117.1 Modem Capabilities configuration setting
060307182116 7-Information D507.0 Retrieved Time....... SUCCESS
************ 7-Information D511.0 Retrieved DHCP .......... SUCCESS
************ 5-Warning D520.2 DHCP Attempt# 1 BkOff: 5s Tot DSC:1 OFF:1 REQ:1 ACK:1
************ 7-Information D0.0 DHCP CM Net Configuration download and Time of Day
************ 7-Information T500.0 Acquired Upstream .......... SUCCESS
************ 8-Debug T503.1 Acquire US with status OK, powerLevel 40, tempSid 969
************ 8-Debug T505.0 Acquired Upstream with status OK
************ 7-Information T501.0 Acquired Downstream (331000000 Hz)........ SUCCESS
************ 8-Debug T509.0 Acquired DS with status OK, DS Freq 331000000, US Id 5
************ 7-Information I510.0 *** BOOTING *** SB4200-0.4.4.2-SCM01-NOSH

[etccarmageddon]

see

http://www.cableforum.co.uk/board/showthread.php?t=44111

[Ignition]

see

http://www.cableforum.co.uk/board/showthread.php?t=44111

This guy is on Telewest, this being the Telewest section and him being in Plymouth, not ntl.

Don't see much in that thread about bad upstream or packet loss either.

Sounds vaguely like upstream congestion or issues on upstream with signal levels, could you post the power levels your modem gives please, along with a traceroute.

[janipewter]

As requested, signal levels:


Downstream Value


Frequency 331000000 Hz Locked

Signal to Noise Ratio 38 dB

QAM 256

Network Access Control Object ON
Power Level 12 dBmV
The Downstream Power Level reading is a snapshot taken at the time this page was requested. Please Reload/Refresh this Page for a new reading

HFC MAC Address 00:08:0E:26:53:7A










Upstream Value

Channel ID 5

Frequency 25800000 Hz Ranged

Ranging Service ID 969
Symbol Rate 2.560 Msym/s
Power Level 39 dBmV









And a tracert to telewest.co.uk:

C:\Documents and Settings\Jani>tracert telewest.co.uk
Tracing route to telewest.co.uk [62.30.31.74]
over a maximum of 30 hops:
1 <1 ms <1 ms <1 ms gateway.janipewter.net [192.168.1.1]
2 11 ms 7 ms 8 ms 10.187.192.1
3 45 ms 202 ms 207 ms 195.188.231.67
4 23 ms 22 ms 22 ms 195.188.231.21
5 * 23 ms * 195.188.231.30
6 22 ms 22 ms 22 ms 194.117.136.142
7 23 ms 22 ms 35 ms 194.117.136.157
8 * * * Request timed out.
9 * * * Request timed out.
10 * * * Request timed out.
11 * * * Request timed out.
12 * * * Request timed out.
13 * * * Request timed out.
14 * * * Request timed out.
15 * * * Request timed out.
16 * * * Request timed out.
17 * * * Request timed out.
18 * * * Request timed out.
19 * * * Request timed out.
20 * * * Request timed out.
21 * * * Request timed out.
22 * * * Request timed out.
23 * * * Request timed out.
24 * * * Request timed out.
25 * * * Request timed out.
26 * * * Request timed out.
27 * * * Request timed out.
28 * * * Request timed out.
29 * * * Request timed out.
30 * * * Request timed out.

[janipewter]

Bump. Anyone?

I'm still getting really poor upstream (only 15 kilobits per second according to a speedtest). This is annoying, everything takes forever to load and with such high packetloss I can't do anything which involves even a small amount of bandwidth.

[StevenJohnson]

I'm having problems with upload speed as well. It can be fine all-day then it drops from 256k right down to 38k. It's really annoying me at the moment, I can't work it out. Blueyonder say my modem is fine, but when I look at the log on my SURFBoard in the Priority section I see a lot of Error, Critical and Notice....Is that normal ?