Interval loop on long running routers can get stuck

## Problem
Interval loop on long running routers can get stuck.
Noticed in Hashquark router logs, with stuck interval loops that query subgraphs, but `sendStatusToSequencer` functions as expected, leading us to believe the router is actually working.

## Impact
Overall reliability of the network.

## Proposed Solution

## Acceptance Criteria
_From an end user perspective, the below criteria must be met to consider this done:_
- [ ] Test the `stop` mechanism against a simulated stuck interval loops
- [ ] Router recovers from the stuck loop and resumes iterations