on 22-07-2012 14:29
My broadband was recently doubled speed, and the same day there seem to be some issues induced to my connection.
1. Steam won't connect anymore, constantly getting "Could not connect to the Steam network" on 3 different machines with Steam accounts. When connected to 3 Mobile Broadband all connects OK.
2. VPN and Proxy won't respond at all. When connected to 3 Mobile Broadband ALL connects OK.
3. Can't log into Google Talk on Android phones. Status bar remains grey. When using phone's 3G connects OK.
4. Can't ping / traceroute. Absolutely no response from server as if all ping packets were dropped by some kind of firewall.
It all started around 20th July when my VM broadband doubled speed in Ealing (W5) area. Personally I work in technology field so I'm pretty sure I've conducted all possible troubleshooting steps, such as restarting everything, checking firewall, changing cable & wifi connection, but all signs point to some kind of routing issues / traffic shaper in place between my VM modem and the internet.
I've googled a bit but couldn't find anything particularly useful.
Answered! Go to Answer
on 22-07-2012 22:16
So after digging into the situation the fault seems to be with the router firmware.
The router updated firmware "OTA" by itself 2 days ago, and for some reason it set its own Firewall to Strict filtering.
I would recommend anyone affected to restore the router to default settings and configure again.
Also the VPN passthrough settings are a bit buggy, if you don't need firewall but still need VPN passthrough, you will need to turn on Firewall first, enable VPN passthrough, apply settings, then disable firewall. The VPN passthrough setting will then stay.
Now my internet is back to normal. Wish my experience would help someone else in the same boat.
on 24-07-2012 13:16
26-07-2012 01:27 - edited 26-07-2012 01:42
Just signed up to say that this has appeared to fix the problems I've been having with Steam too, in the last couple of hours Steam has completely destroyed itself trying to update and not being able to find files to delete them and lots of other nonsense (see here for details), disabling the modem firewall appears to have fixed these problems for me. Thanks very much for your update, you're a lifesaver... got to say that I'm none too pleased with Virgin Media at the moment, stealth-pushing debilitating updates combined with our on-demand TV service being out of action for five days now is pretty dire!
on 26-07-2012 11:46
Can you please clarify the differences between Firewall low, medium and high settings?
If i set to medium my xbox 360 cant connect to xbox live. But is it safe to leave on low? Can i use high without blocking services
on 26-07-2012 22:05
Same with my roomate's xbox, not sure what low, medium or high means since they're not explained. But I would assume if you have enough computer knowledge it's safe to leave it on low or even off. It's your internet practice that matters.
on 26-07-2012 22:09
VM customer service is terrible. I called the other day for internet issues, they were not patience at all, and they were so impatient they ended up hanging up on me. Unimpressed at all.