Perth, WA here and on iiNet. Also tested with Telstra Cable, Telstra NextG, Internode ADSL and TPG ADSL at other locations to confirm it wasn't just my provider.
I found this problem myself at 11:00PM WST (no DST anymore) on Friday 14th of December 2012 right before Project Alamo started and it's been occurring ever since. I've spent the last two weeks with no results whatsoever from EA Support (finally got a response to my emails after more than a week of waiting and it just repeated everything I've already been told and tried before...) to improve the problem and the only time I've been able to get connected is during a very short window from 3:00AM WST to 6:00AM WST.
I have been extensively troubleshooting this problem ever since and to date I have done the following with no improvement:
Software:
- Confirmed Windows Firewall was disabled (no other software firewalls installed)
- Confirmed Avast! Free AntiVirus disabled (set to silent/gaming mode).
- Uninstalled Avast! Free AntiVirus.
- Logged out of Origin software, then logged back in again before trying ME3 Multiplayer again.
- Logged out of all Origin website logins and the Origin software, then logging back in again.
- Cleared all cache files (Origin, Internet Explorer, Mozilla Firefox, Google Chrome and Apple Safari) and Windows temporary files too.
- Changed my Origin password.
- Uninstalled Origin and reinstalled it.
- Ran repair installation of Mass Effect 3.
- Uninstalled Mass Effect 3 and all DLC, then reinstalled it along with all previously paid for and free DLC.
Hardware:
- Power cycled my Netgear DGN2000 ADSL/WiFi router for 10 minutes to get a new IP address, then logged into Origin and tried ME3 Multiplayer again.
- Confirmed all Origin PC port forwarding was enabled correctly.
- Manually disabled all firewall options built-in to my Netgear router, logged into Origin and tried ME3 Multiplayer again.
- Factory reset my router, reconfigured it from scratch with firewall off and tried again.
- Isolation test of phone line to just ADSL router to confirm no line noise/interference issues.
- Tried another brand new ADSL router, Netcomm NB6Plus4, with default configuration for built-in firewall and custom Origin PC port forwarding enabled.
- Updated firmware in Netcomm NB6Plus4 to latest version, factory reset it, then repeated previous configuration settings (inc. Origin PC port forwarding)
- Tried Netcomm NB6Plus4 router with firewall manually disabled.
- Tried iiNet ADSL from a family member's house in the same suburb with their router (Netgear DG834PN) with same port forwarding.
- Tried iiNet ADSL from a friend's house in a neighbouring suburb with their router (TP-LINK TD-8840) with same port forwarding.
- Tried Telstra NextG USB device from my house with five bars signal strength.
- Tried Telstra Cable from a friend's house in another suburb closer to the CBD with their router (Motorola SBG6580) configured for the same port forwarding.
- Tried Internode ADSL from a Perth City Internet Cafe through the ADSL router directly (no firewall, DMZ location).
- Tried TPG ADSL from a Perth CBD business directly off the router (no firewall, DMZ location).
Using the UOTrace tool (https://help.ea.com/article/how-to-uo-trace), as requested by one helpful EA Customer Support Advisor after he saw how long my fault has been open for, I performed multiple trace route tests and repeatedly hit xe-11-2-0.edge1.losangeles6.level3.net (4.68.62.9) and 8-3-2.edge1.LosAngels.Level3.net (4.68.70.69) as dead points in the test.
Further investigation found that Level3.net is a Tier 1 network backbone provider on the USA Western Seaboard for the Washington and Los Angeles network pipes to Japan, Hawaii, Fiji, Australia and New Zealand. Matched up against the brief period that I rarely connected to the ME3 Multiplayer with the Washington pipe, it left the Los Angeles routers provided by Level3.net as the primary cause of our problems.
Armed with this, I went to the ISPs after still no assistance from the EA Support team.
Internet Service Providers:
- Spoke with iiNet Support and they created Fault #2319010 (http://www.iinet.net.au/status/fault.php?id=2319010) after other iiNet customers complained too about Spotify and their multiplayer games connecting to USA servers having problems.
- Spoke with Telstra Support (Cable & NextG) and they blamed EA Servers for being at fault.
- Spoke with Internode Support and they couldn't confirm/deny it other than commenting it was a problem with the EA Servers.
- Spoke with TPG Support and they blamed EA Servers for being at fault.
I am using a Windows Vista Ultimate SP2 laptop with an ethernet cable link to my Netgear DGN2000 ADSL/WiFi router. I have never used local wireless networking for this gaming computer when playing Mass Effect 3 Multiplayer. I do not have the Omega DLC installed, but I have everything else except the appearance and weapon DLC packs.
This is not a DLC caused problem. It is a Tier 1 network problem with the Level3.net provided services in Los Angeles and only they can fix it, but EA could certainly help by directing some fault information their way since the Internet Service Provider network operation centre teams can only provide the trace route (tracert) information from our side alone.
The only way to solve this issue is for all of us in Australia and New Zealand caught on the Sydney-Hawaii-Los Angeles or Auckland-Hawaii-Los Angeles pipe to let our Internet Service Provider support teams know this problem and for EA Support to raise the issue with Level3.net from their side too. Provide your UOTrace results (at least five) to your ISP Support and include it in your EA Support cases too with screenshots of the errors.
Otherwise this will never be solved because only one half of the testing is being completed. And if that happens I'll be very upset.
(Edit: Added additional troubleshooting I'd forgotten).