2-way splitter versus through isolator

[fairpaul]

When I had cable installed about a week ago, there were two cables coming out of the white entry box, one for the V+ set top box and one for broadband, each of which had a through isolator in the line.

http://mediacables.co.uk/shop/index.php?main_page=product_info&manufacturers_id=10&products_id=13

I connected the cable modem to a Netgear WPN824 RangeMax wireless router.

Due to low wireless signal strength, a few days later I had the cable modem relocated to an upstairs bedroom, where I had a single feed from a second cable entry box into another set top box. To do this, the installer put a two-way splitter into the single line.

http://mediacables.co.uk/shop/index.php?main_page=product_info&manufacturers_id=10&products_id=16

Will having a two-way splitter in a single line as opposed to the original two lines each with its own isolator have any effect on the quality of my Internet connection?

Paul

[Paul K]

Not if the installer did it properly and checked your signal levels after changing the cable set up. If you have any issues with the connection (speed, drop outs etc) then check your levels through the modem config page and see if they have been kept to spec.

[fairpaul]

Thx for the prompt reply.

I do seem to have some issues with the connection - fluctuations in both speed and signal strength.

This may seem a naive question but how do I access the cable modem config page?

[Ernie_C]

http://192.168.100.1/

[papa smurf]

fitting a 2 way splitter will add a 3db loss of signal strength [which may severly impede your modems performance ,depending on incomming signal levels]

[Incomplete]

If splitting the signal and adding the ~4dB of attenuation makes the modem fall over it was pretty marginal anyway.

http://root:root@@192.168.100.1 for the cable modem diagnostics.

[fairpaul]

Thanks Ernie C, Papa Smurf and Incomplete for the replies. I have accessed the modem:

Maximum Downstream Data Rate: 10240000
Maximum Upstream Data Rate: 512000

This is OK, as I am signed up to the 10 Mb (soon to be 20 Mb in Cardiff I hope!) XL package.

Downstream Receive Power Level : -4.2 dBmV
Downstream SNR : 38.3 dB

Are the latter OK?