FTP problem and resolution

I thought I would post this in case anybody else ever has a similar problem...

I had a problem uploading files larger than about 4-5K via FTP. The folks at DiscountASP.net tried to help but found no problem on their end, so I started scouring the Web for other reports of this type of problem, and finally found the solution.

I have a Linksys broadband router (WRT54G) that I use for my home office network, which apparently has a bug in the firmware (even the latest version, as of this writing), which causes FTP to fail when trying to transfer files above a certain size; for me, the threshold seemed to be 4 to 5K. It would just appear to hang at that point.

It turns out that all I had to do to solve the problem was go into the router setup (usually 192.168.1.1) and change the MTU (Maximum Transmission Units) setting from the default of 1500 to 1492. In any case, lowering the MTU solved the problem.

Maybe this will save somebody else from pulling his hair out.


Phil

 

I had the same issue, and after many hours of disabling everything and trying and wading through tons of search results in the forum, I found this post.


My router was already set to 1492, so I put it at the minimum of 576...now FTP is working.


Could this tip go into the KB for future use?