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Standard User Samadeus
(newbie) Thu 30-Oct-14 13:39:30
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MikroTik RB951-2n - possible MTU issue on FTTC


[link to this post]
 
Hello,

Does anyone here have experience of setting up a MikroTik RB951-2n on FTTC with an Openreach modem?

The issue I am experiencing looks a lot like an MTU issue in as far as I can't seem to browse to some websites that I know work, these aren't HTTPS sites so it is a bit weird.

Anyway, I have been playing with multiple MTU settings and it doesn't seem to make a difference, however I connected my laptop to the OR modem and created a connection in DUN and these websites work - using non fragmented pings from here I found the maximum packet size I could use was 1272 which seems odd.

Anyway, any help or suggestions would be greatly appreciated.

When I've got the music, I've got a place to go.
Administrator MrSaffron
(staff) Thu 30-Oct-14 15:02:57
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Re: MikroTik RB951-2n - possible MTU issue on FTTC


[re: Samadeus] [link to this post]
 
Which provider? 1272 sounds very odd, it may be the PC is oddly configured which is compounding the issue with the router.

The author of the above post is a thinkbroadband staff member. It may not constitute an official statement on behalf of thinkbroadband.
Standard User Samadeus
(newbie) Thu 30-Oct-14 15:56:27
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Re: MikroTik RB951-2n - possible MTU issue on FTTC


[re: MrSaffron] [link to this post]
 
Zen is the ISP, something I can look into when I get home but don't believe that there should be any weird settings.

When I've got the music, I've got a place to go.


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