Greetings,
I have RB951G-2HnD, firmware 6.35, using as firewall router and Wifi AP, internet access by PPTP (Huawei E3276s stick connected to USB). I loaded default configuration and after I made some changes. It is all working when I connect to router by WiFi - I can access speedtest.net and all downloads are ok, but I can not load completely the same site when I am connected to wired LAN. Also there is some troubles when I connect my PC by wire - it has gigabyte card, but sometimes it connect as 100 mbps. Net cable is ok, same problem is with all cables used also there is problem with big files download or transmitting by wire on the same network. Computers has Broadcom NetXtreme 57xx Gigabyte network cards.
I have bridged wlan, eth2 and eth3 to bridge1 and eth4 and eth5 to bridge2, because 2 different LANs are used, but there not problem's reason - the same situation is when used only one bridge.
Also random appear ghost IP in ARP list from the same network on bridge with 00:00:00:00:00:00 mac
Have some thoughts? Gracias

Have observed the same, recurring once a while.

Anybody has similar problems?