Problem with RB 951-2n

RouterOS Beginner Basics
1

Got this nice piece of engineering last week, connected to ISP cable and used 4 days without problems. Suddenly it stopped to work- I could connect to wifi, but no internet. I can ping ISP IP and GW from eth1 interface on RB, however I can’t ping ISP DNS. ISP can ping my eth1 but not any further. I checked the manual and so far didn’t find what could be wrong. Replacing RB with different router solves the problem, but I’d like to find out what’s wrong with this one.

ddff

2

OK, problem solved- that was in the ISP router, they put my IP in DMZ and now works like a charm.

ddff

3

Please, share your network coniguration, and CHECK the MTU in interface :wink:

A.