Hello.
On last friday our main router (CCR1036-8G-2S+) was upgraded from 6.37 to lastest stable routeros. From this time some client has problem with some connections - netflix, skype for bussines, online radios, speedtest.net - just can't connect to specified services. But for example they can connect for example to speedtest.pl - download it's ok but upload it's about 0,2 mbps. Problem occurs only on some devices - linux mint 17 pppoe client, Dlink dir 605l router, some asus devices.
I can see client connections on router on all interfaces, connection occurs in ip->firewall->connections with correct state, router doesn't log nothing strange, but for some reasons clients can't connect to random pages.
Any ideas?