Strange problem with customized firmware

[perms]

After upgraded my WL-500g with the customized firmware (both 1.6.5.3-3 and 1.6.5.3-4), some web-addresses became inaccessible. The two addresses I so far got problem with is:
www.adressa.no
www.nokiausa.com

Tried to reintall firmware, reset the router, turn it off and on and so on without any success. Finally I had to "downgrade" my firmware back to the originally 1.6.5.3 from ASUS and then there is no problem to access these addresses.

Any suggestion?

[Oleg]

Sorry, that's my fault. PPPoE/PPTP & NAT stop working - just figured out this. For now the easiest way to restore the normal operation mode is to execute
iptables -I FORWARD -p tcp --tcp-flags SYN,RST SYN -j TCPMSS --clamp-mss-to-pmtu
after the connection was established to the pppoe/pptp server.
I'm now trying to determine the exact reason for that...

[Oleg]

Just uploaded the new version - http://jaffar.cs.msu.su/wl500g/wl500g-1.6.5.3-5.trx
The problem was the PATH changes in the busybox provided shell ash - /usr/sbin was no longer in path.