RIC is currently under maintenance or experiencing wallet/network issues. Deposits and withdrawals will remain disabled until a solution is found, which may require an update from the RIC team. Any updates must be tested and audited before enabling.
RIC is not experiencing any network issues.
BTC38 works great, just tested a few moments ago.
On the other hand, Poloniex can't seem to fix anything lately. .

Poloniex is right, GUI wallet RIC is not synchronized at all, 3 days no progress, on the badge "network" red cross. What kind of network stability are you talking about here that I do not understand.