EOIP causes problem in TLS navigation

I found a strange problem when attach EOIP to bridge.
EOIP works fine through a PPTP tunnel between 2 remote mikrotiks but can not navigate with PC’s attached to bridge at the two sides when visited web pages must negotiate TLS.
If I disable EOIP from bridge at internet side now at side of ADSL (obviously) every PC work OK in TLS pages.
What could can be it?