Some web pages doesn't show up with Mikrotik

RouterOS General
1

I got a weird situation. I’m using an adsl line with mikrotik 2.9.20 with just ip masquareding. My configuration is very simple and it just NAT’s my private network to the PPPoE interface. I can use internet without any problems for most of the sites but when i try to get in to certain web sites it doesn’t simpy showups. Any ideas ?

Websites are in Turkish but no problem already it doesn’t show up anything :slight_smile:

1 - http://www.denge.com.tr
2 - https://sube.garanti.com.tr/isube/login

2

I dont get it…

It loads for me…

Config: 2.9.20 ADSL Provider = Covad
ADSL Modem = Netgear (In bride mode, NAT off)

Possable ISP block?

Craig

3

Or might be a MTU problem?

Best regards,
Christian Meis

4

Infact in bridge mode it works. But when i use nat it hangs.

My MTU is 1492 and with my adsl modem i see it as 1492.

5

That is truu, i have the some problem, somethimes i can’t open some web side and don’t download all picture from web.
Where you sugest to change MTU?
On all MT or only on MT serwer?
Thank’s for answer.

Best regards.

6

Thanks for the warning about MTU.

I can not imagine why that kind of adjustment needed with mangle for the mss value but i saw on the posts that is the solution.

Regards
Gokalp Cakici