Sentence: I just tried rebooting the appliance, but it seems it just goes up...

Hi Teacher,

Can you please reply for my queries?

I just tried rebooting the appliance, but it seems it just goes up, when it is ideal.

we are using two commas in one sentence, is this ok?
before but do we need comma?

A man in army trousers came running down the path toward the boats, shooting at the solders.

“Came running” is proper grammar?

.
Are the following sentences correct?

Hi Teacher,

Can you please reply to my queries?

I just tried rebooting the appliance, but it seems it just goes up, when it is ideal.

we are using two commas in one sentence, is this ok?-- There is no limit to the number of commas a sentence can contain.
Before ‘but’ do we need a comma?– Yes. (However, I do not understand the meaning of your sentence.)

A man in army trousers came running down the path toward the boats, shooting at the soldiers.

“Came running” is proper grammar? – Yes.

Hi Sir,

Thank you for the reply.
In second sentence, I did not understand that we are using second form of come (came) along with this we are using “running”.

Can you please help me to understand? because if I construct this sentence I will write this sentence as follows:
A man in army trousers “was” running down the path toward the boats, shooting at the soldiers.

I will use “was” rather then “came”, as I am telling the past to third person.

.
Several verbs are possible; if they are in the past tense, then the event is in the past:

A man came running down the path
A man went running down the path
A man was running down the path
A man appeared running down the path
.

If I am not wrong, you mean to say here “running” is not a verb.

Note** I like in your previous reply, that you marked ‘bold’ words where I did mistake in my question itself, I will appreciate if you continue this.

Thanks a lot.
Regards,
Ashvini