user124991: I used to have about 5 routings per day. Now, since three days I don't have any routing. In my lnd.log I find lines like this:
grep ERR lnd.log
2021-09-19 22:40:53.187 [ERR] HSWC: ChannelLink(700510:557:1): unable to update fee rate: cannot apply fee_update=1419 sat/kw, new balance=0.00007673 BTC would dip below channel reserve=0.00015 BTC
2021-09-19 23:11:00.999 [ERR] HSWC: ChannelLink(700510:557:1): unable to update fee rate: cannot apply fee_update=1419 sat/kw, new balance=0.00007673 BTC would dip below channel reserve=0.00015 BTC
2021-09-19 23:23:01.180 [ERR] HSWC: ChannelLink(700510:557:1): unable to update fee rate: cannot apply fee_update=1419 sat/kw, new balance=0.00007673 BTC would dip below channel reserve=0.00015 BTC
2021-09-19 23:42:23.031 [ERR] HSWC: ChannelLink(700510:557:1): unable to update fee rate: cannot apply fee_update=1419 sat/kw, new balance=0.00007673 BTC would dip below channel reserve=0.00015 BTC

(changed the channel-id here)
Seems like I have insufficient local funds on one channel. Can this error be the reason that all channels (about 50) to stop routing? And how can I (from anything like lncli listchannels) find what channel that is (700510:557:1)? I find only the uint64 notations for the short channel id.
And, finally, how I can I solve that problem?
Thanks!
P.S. Meanwhile found the channel (700510:557:1) at amboss.space.

user81940: The error message is about trying to update the onchain fees in the case of a force close. The onchain fees are renegotiated with your peer from time to time, so that you are safe in case your partner becomes unresponsive. From your log file, it looks like your channel has most of its balance on the remote side and thus you could not afford the higher onchain feerate which your node attempted to set.
With respect to routing I guess (!) you ran into a typical issue of setting your routing fees too low after announcing the channel. In that case people might quickly use your channel for rebalancing and to get themselves the liquidity to where they believe it will be used best in the future. This would explain why you don't route anymore on that channel. Of course you could rebalance which will cost you money or just wait until money flows in the other direction.

124991: <p>I used to have about 5 routings per day. Now, since three days I don't have any routing. In my lnd.log I find lines like this:</p>
<pre><code>grep ERR lnd.log
2021-09-19 22:40:53.187 [ERR] HSWC: ChannelLink(700510:557:1): unable to update fee rate: cannot apply fee_update=1419 sat/kw, new balance=0.00007673 BTC would dip below channel reserve=0.00015 BTC
2021-09-19 23:11:00.999 [ERR] HSWC: ChannelLink(700510:557:1): unable to update fee rate: cannot apply fee_update=1419 sat/kw, new balance=0.00007673 BTC would dip below channel reserve=0.00015 BTC
2021-09-19 23:23:01.180 [ERR] HSWC: ChannelLink(700510:557:1): unable to update fee rate: cannot apply fee_update=1419 sat/kw, new balance=0.00007673 BTC would dip below channel reserve=0.00015 BTC
2021-09-19 23:42:23.031 [ERR] HSWC: ChannelLink(700510:557:1): unable to update fee rate: cannot apply fee_update=1419 sat/kw, new balance=0.00007673 BTC would dip below channel reserve=0.00015 BTC
</code></pre>
<p><em>(changed the channel-id here)</em></p>
<p>Seems like I have insufficient local funds on one channel. Can this error be the reason that all channels (about 50) to stop routing? And how can I (from anything like lncli listchannels) find what channel that is (700510:557:1)? I find only the uint64 notations for the short channel id.</p>
<p>And, finally, how I can I solve that problem?</p>
<p>Thanks!</p>
<p>P.S. Meanwhile found the channel (700510:557:1) at amboss.space.</p>
 81940: <p>The error message is about trying to update the onchain fees in the case of a force close. The onchain fees are renegotiated with your peer from time to time, so that you are safe in case your partner becomes unresponsive. From your log file, it looks like your channel has most of its balance on the remote side and thus you could not afford the higher onchain feerate which your node attempted to set.</p>
<p>With respect to routing I guess (!) you ran into a typical issue of setting your routing fees too low after announcing the channel. In that case people might quickly use your channel for rebalancing and to get themselves the liquidity to where they believe it will be used best in the future. This would explain why you don't route anymore on that channel. Of course you could rebalance which will cost you money or just wait until money flows in the other direction.</p>
