After my ISP upgrade their backbone to MPLS we have a internet brower issue wide across my LAN. Some PCs can not brower internet, but some PCs in the same segment can!!!
I do a NAM trace found a HTTP error
" IP packet size limited during capture: HTTP truncated".
Later we tried decrease local pc MTU to 500 it works, they can brower the site which do not open previouly. But still the problems is some PCs local MTU setting is 1300 is working fine ???!!
I really confused?? Is it a MPLS issue or it is my local router setting? Since I have not make any change on my site recently?
Need your help.