I have posted this on the Mandriva forum but think it is such an obscure fault it would be worthwhile asking here also.

I have a Netbook and a desktop both running Mandriva 2010 cooker. The Netbook connects to my router wirelessly and everything, including updates, works perfectly OK.

The desktop connects via wired network connection and works perfectly UNTIL I try and run an update. Then it crashes the router and I lose the internet connection, both wired and wireless!

The only solution is to stop the update and restart the router. The desktop also has Windows 7 on it and when I run an update on that it works perfectly. This has only started happening fairly recently, a couple of weeks ago it updated about 200 packages without problem.

At the suggestion of someone on the Mandriva forum I disabled hotplugging and it seemed to fix it at first, it certainly made my internet connection faster. I ran the update and URPMI DRAKE update ran fine. Then I tried the rest of the updates and the problem returned. I didn't have the chance to investigate further as others were trying to use the internet.

You could try going into your router and setting your Mandriva box to DMZ for the duration of the update. If the router is one of those 2Wire adsl pos things they seem to just crash for no reason during long downloads try installing your updates in small chunks.

I have tried downloading only the smallest file in the upgrade list and it still sticks at about 20%.

I have also tried downloading a 4GB ISO file, watching BBC iPlayer, opening multiple web pages, listening to streaming radio and checking my email all at the same time. That is a little slow but works fine. It is only update that cause a problem.

I have now solved this issue, if not resolved the reasons for it. Making some changes to the network settings in Mandriva solved the problem of the router crashing during updates.

However, the problem started getting worse and began to affect both Mandriva and Windows. The fact that all the wi-fi connected devices in the house worked OK made me suspect it was related the my 'network over the mains' connection. So I fitted a wi-fi card in my PC and the problem has gone completely!