MTU sizes and DSL connections

broadband ? BellSouth Forum FAQ 5.0 Connection and Tweaking

Can’t say I’ve had to fight MTU sizes since returing to Canada and reasonable broadband rates for connectivity (combined with decent enough support). But for those of you that struggle with ‘wierd’ DSL broadband (yes, I’m talking to you Bermuda/BTC) connections like stuff dropping, only portions of connectivity working (HTTP does, SMTP doesn’t, etc.) – its time to look at your MTU setting on your router.

DSLReports has a great/brief writeup on where to look next.