Windows 7 - Avira and Windows 7, now in trouble

I have used Avira free for some time, but after the last install of Windows 7, I'm in troubble.
Avira installs fine, but it can't update Virusdatabase. It seems like it don't connect at all, transfering 0 bytes, and after about 15-20 minutes break off with an error (and no update). The error just saying something like "can't be updated at the moment. Please try later".
Well, that has lasted over 2 days now, and earlier today I updated Avira on my laptop (XP) with no problems.

I have redownloaded Avira, installed it, uninstalled it, installed it again (from a third download!), but still it can't update.
Avast, AVG and trial Kaspersky updating without problems.

Any ideas?

May I first ask why (and I mean this in the best possible manner...) do you have 4 different Anti-Virus? Anti-Virus apps normally conflict with each other in some way (whether they tell you or not). It is very reccomended to only use one Anti-Virus app at a time

Its a sign, dump all but one Anti-Virus. As Zidane mentioned, it is not recommended to have more then one installed on the same machine. :S

hi !

what firewall are you using ?

i´m using Avira and normally have no problem updating, but i´ve also seen "your" problem a few times, usually it works a bit later.

For me, Avira does not work at all on RTM x86, 7600 build. It installs, but then reports that antivirus driver is not compatible (or something like that) and it wont start the AV service. Well, back to Panda IS...

It works great for me ...

See if manually downloading the latest definitions with get it back in working order
Download Avira Antivir Virus Definition File Update October 26, 2009 Free Trial - Download the Virus Definition File to always keep Avira AntiVir up-to-date - Softpedia

My English is not good enough. I have of course only 1 virus-killer installed at the time. As written in #0, this is a new install of Windows 7 x64, and after Avira did not work, I tried some other virus-killers (one by one!), and after them, I tried Avira again, but Avira won't update. From time to time during severel tries, it downloads 1-10 Kbyte, but then stops again. I'm using Windows 7 other security, Firewall, Windows Defender aso. I really like Avira, as it is fast, and does not take up much space. Maybe I should try Microsofts own new Virus-killer?

#6 Yes, that is working, but do I really have to do this by myself from now on?

I don't know if you'll have to do this from now on

I see you have an RC version of Windows 7 ... what is the 'build' number? You have it listed as RC 1

As written in first post, this is (installed again) a clean install of my new Windows 7 Ultimate x64 Retail

hi !

Burgurne: "As written in first post, this is (installed again) a clean install of my new Windows 7 Ultimate x64 Retail"

may i suggest that you take a good look at your own first post above ?
"...last install of Windows 7..."

it has *NO* info about what Windows 7-version you are using...