I’ve been having internet connection troubles again recently. I think I might have mentioned this on a previous post. Anyway, as a lot of people seem to be coming to this blog searching for “Eclipse ADSL MTU Size” (and if you’re one of them, hello! – I hope you find this helpful), I thought I’d post it up here.
The symptoms seem mainly to be problems uploading – sending large emails, uploading stuff via FTP… I’ve even had problems with Facebook and logging into Gmail! It’s all very similar to the last time.
Anyway, I’ve checked the Eclipse knowledge base again, and they recommend an MTU size of 1458 – but say if that doesn’t help, you could try 1430. So, lo and behold, I changed my MTU size to 1430 and everything seems back to normal. Bizarre, non?
Ah well, I’ll bear that in mind for next time.
Just for the sake of posterity, here are a couple of articles which might help:
Changing the MTU size in Linux on Debian based systems (including Ubuntu)
Changing the MTU Size in Windows (Note: I haven’t tested this but it looks like it should work).