Tools page--> edges panel--> select elms or comps--> click on 'find edges'. This will show if there is a break in node connectivity. The break in connectivity can be equivalenced in the same panel by: selecting elms--> preview equivalence--> equivalence the previewed nodes. Care should be taken while setting the tolerance value, as two components which are too close may get equivalenced.
Tools page--> edges panel--> select elms or comps--> click on 'find edges'.

This will show if there is a break in node connectivity. The break in connectivity can be equivalenced in the same panel by: selecting elms--> preview equivalence--> equivalence the previewed nodes. Care should be taken while setting the tolerance value, as two components which are too close may get equivalenced.