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Old 12-04-2012, 23:55   #1
GuestUK
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Join Date: Mar 2005
Services: Ex-NTL: Virgin 4mb internet, Virgin phone, Virgin Digital TV (XL): 1 Pace STB, 1 V+ STB
Posts: 245
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Intermittent Connectivity - What to do?

Hello,

Recently, I've suddenly started getting intermittent internet connectivity. I'm losing packets, internet traffic is incredibly slow (likely due to having to continually repeat transmission) and I'm not sure what to do next.

This is over wired, so wireless is not a factor. The superhub is acting as a modem and has a router plugged in, the computer is plugged into the router. No issues have occured before.

For example, pinging google gets the following results:

Code:
Pinging google.com [173.194.41.142] with 32 bytes of data:
Reply from 173.194.41.142: bytes=32 time=23ms TTL=55
Reply from 173.194.41.142: bytes=32 time=28ms TTL=55
Request timed out.
Reply from 173.194.41.142: bytes=32 time=20ms TTL=55
Request timed out.
Reply from 173.194.41.142: bytes=32 time=34ms TTL=55
Request timed out.
Reply from 173.194.41.142: bytes=32 time=19ms TTL=55
As you can see, 3 out of 8 timed out, which isn't brilliant!

Power levels from the superhub show:
Code:
Downstream Channels
Lock Status	Modulation	Channel ID	Max Raw Bit Rate	Frequency	Power	SNR	Docsis/EuroDocsis locked
Locked	QAM256	176	55616000 Kbits/sec	291000000 Hz	2.4 dBmV	42.0 dB	Hybrid
Locked	QAM256	177	55616000 Kbits/sec	299000000 Hz	1.4 dBmV	40.8 dB	Hybrid
Locked	QAM256	178	55616000 Kbits/sec	307000000 Hz	1.2 dBmV	41.0 dB	Hybrid
Locked	QAM256	179	55616000 Kbits/sec	315000000 Hz	-0.3 dBmV	37.2 dB	Hybrid
Locked	QAM256	180	55616000 Kbits/sec	323000000 Hz	0.8 dBmV	42.1 dB	Hybrid

-------

Upstream Channels
Lock Status	Modulation	Channel ID	Max Raw Bit Rate 	Frequency	Power
Locked	ATDMA	58	20480 Kbits/sec	35800000 Hz	48.5 dBmV
Unlocked	Unknown	0	0 Ksym/sec	0 Hz	0.0 dBmV
Unlocked	Unknown	0	0 Ksym/sec	0 Hz	0.0 dBmV
Unlocked	Unknown	0	0 Ksym/sec	0 Hz	0.0 dBmV
I believe it's also a side effect, but when this problem started, certain TV channels on the V+ box have started going pixelated and breaking up as well :-(

Does anyone have any ideas on how to proceed?
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