WRT54G Problems with internet, help, used to be fine on old router

Question

Hello,
I've bought this router yesterday and have 4 major problems with it ( I've had a cheap router before this and all these problems didn't occur when I use that old router again):
1: I can't access some sites like gamershell or nvidia.com, while they DO load up with a proxy.
2: I can't download from at least half the sites on the www, for example everything from microsoft.com times out.
3: This disconnects after like 5 mins after starting a p2p program. Why is this thing not able to keep my connection alive ?
4: A lot of sites load slower, my internet speed is same, but it somehow now takes ages for some sites to respond after ticking in their adress or clicking on a link.
I'm Cabled to the router, the router is plugged to an old ADSL isdn speedthouch home modem from Alcatel ( 5 years old the modem is), I'm connected with it with PPTP.
Its a version 7 WRT54G router.
( my isp is planet NL, I'm on a 6mb down 1 mb up connection)
Help! Why does this disconnect with p2p, the cheap old router used to be fine 24/7 with p2p.
Please help, thanks in advance.
(Edited post for guideline compliance. Thanks!)
Message Edited by JOHNDOE_06 on 09-02-2007 06:49 AM
Message Edited by Snovvdog on 09-02-2007 07:04 AM

Answer 1

Go to the Setup page and look for the setting called MTU....set it to 1300 and save the settings.... close the browser.... turn off your router by unplugging it from the power.... turn it on after 15 secs then try getting online again.........
Check if you can access the sites afterwards..
"You tried your best and you failed miserably! "