A first time poster, for whom we know nothing about what level of networking knowledge they may or may not have, comes to the forum with an ambiguous question.
And absolutely no information about the downsteam routers other than that they have the MT router as their gateway. And no information about the end nodes (that could have host based firewalls, as is common with Windows).
What is the point in guessing and suggesting any “solution” without more information so we can answer the correct question?
So this is my suggestion to the OP
See Getting Answers and How to Report Bugs Effectively
@anav’s NEW USER POSTING FOR ASSISTANCE
Getting the most out of this forum
Can you find your problem using this: FLINT HILLS TECHNICAL COLLEGE Network Troubleshooting Flowchart This is a good script for checking frequent causes of problems. More troubleshooting tips in this post. Useful guidelines: G. Polya, How to Solve It
P.S. @anav, did you just coin the “help interruptus” description? A google search for help interruptus found other unrelated links with the word “interruptus” in them. 