Upgraded to the VIP pack yesterday which includes 20mbps BB, but never got above 10mbps, between 7-10mbps on speedtest.net
So, I did the 20mbps Speed Optimisations last night and ran the TCP Optimizer as per this page:
http://www.virginmedia.com/help/20mb...timisation.php
but still <10mbps speed?
So today I removed my router and plugged the modem (SB4100) into the PC, rebooted modem then the PC but still the same <10mbps speed.
Then I uninstalled all my net software, AdSubtract pop up blocker, AVG Free Anti-Virus and Zonealarm Free. Rebooted PC and speedtest.net shows speed as 15mbps!!
Reinstalled Adbsubtract and speedtest still shows 15mbps, reinstalled AVG Free and speedtest still 15mbps, reinstalled ZA Free and rebooted, as it needs to, and speed is <10mbps again! Uninstalled ZA Free and rebooted and speed is back to 15mbps!! Connected the router back up and re-ran the speedtest and got 15mbps again which shows the router is OK!
So ZA is definitely restricting my speed, but why? Have run ZA for years and never seen this issue!!
I also read on this forum that some SB4100's can't do more than 16mbps as its a firmware issue, seems to be plausible as I can only hit about 15mbps doing a test download of this file:
http://gamefiles.virginmedia.com/blu...h/ifhsetup.exe
shows 2.02MB/Sec speed which is about 15mbps, and downloading a test file from Virgins Newsgroups shows 1.9MB/Sec so about 15mbps again.
So it looks like I need a new modem but who do I contact if I do? As for Zonealarm looks like a trip to their forums